Know what I really don't understand? People who like Snape. I understand that a lot of people do, and I'm not going to leave hate comments or anything(I might block you depending on other factors tho) but like, why? He bullied children, stalked a girl even after she told him to fuck off, bullied one child specifically just because of who his dad was, created dark spells used for torture, and spent his life either serving voldemort or pretending to(I could probably add more to this list but I don't want to piss people off too much). Don't get me wrong, I enjoy when seemingly bad characters are shown in a new light and made more 3 dimension, and turned into heros(barty crouch jr), but what can be shown to make Snape good? Jk couldn't make me like him even with all of her reasoning, so why do people like him? If anyone has valid reasons I would absolutely love to hear them(not being sarcastic I promise), but as of this point I have heard nothing that redeems him in my mind.
Because this was in the general tag, I'm going to go ahead and assume that you are genuinely interested in hearing responses, so here goes:
I like Snape because he’s such a contradictory and complex character. He’s a brave, sarcastic, genius asshole. He walks the line between utterly pathetic and hyper-competent in a unique way. He’s a twitchy, unpopular oddball as a teen, but at the same time is the most gifted of his generation. He’s petty in his day-to-day interactions, but selfless when lives are on the line. For each child he bullies, he also does what he can to protect them and save their lives; though he’s caustic and offensive in his words, his actions, motivations, and the magic associated with him are primarily defensive. He’s cold and sneering but cares deeply. He’s a master spy and manipulator who enjoys running circles around Bellatrix at Spinner’s End, yet with Harry, his emotions tend to run close to the surface, and he is remarkably honest, blunt, and straightforward.
I also like Snape because while he’s only too human, he’s also almost inhumanly brave. He’s a traumatized character who has never healed, and he acts like it. His descent into darkness and joining the Death Eaters is a realistic portrayal of radicalization. Yet he manages to leave and commits to walking a hard path towards atonement for his past role as a Death Eater, eventually sacrificing everything—his comfort, ambitions, reputation, relationships, ability to be known, personal motivations, and life—for it. He’s the most important member of the Order and regularly risks his life for the people (and society, really) that he loathes and that loathe him right back. And he manages to do it all even while terrified of Voldemort.
Finally, he’s an incredibly dynamic character. He goes from someone who harbors anti-muggle prejudice to one who embraces muggle skills and befriends people who champion muggle rights. He goes from not valuing human life to trying to save as many as possible (“lately, only those whom I cannot save”). His motivation shifts from the personal to the good of the wizarding world. He develops his moral compass and surpasses his need for his mentor.
So yeah, tldr; my favorite characters are those that are interesting, not simply nice or palatable. And in that vein, Snape’s petty cruelty is part of the appeal, because it’s in such contrast to his ultimate selflessness. He does indeed redeem himself, even if it doesn’t turn him into a “nice” person.
I do have to wonder about your claim that Barty Crouch Jr is shown to be more 3D and turned into a hero though… while we were shown that his loyalty to Voldemort came from issues with his home life and his father (like Snape, he sees a father figure in Voldemort), I don’t think he’s ever supposed to be redeemed in any way or portrayed as a hero?
OP might find some answers in deconstructing the slandering narrative that was spread by snaters:
- Snape never talked Lily just after she told him to fuck off, that's James, and Sirius even tried to make it sound cute. It is entirely possible by the way to see Snape's love for Lily as platonic all the way, symbolized by his female Patronus. Even if it was romantic, it must have become platonic (on another level) at some point because Lily was dead and yet Severus continued to work to ensure her will (until he couldn't).
- As far as we know Snape didn't create spells for torture. Sectumsempra (the one obviously harmful spell we learn he created) was made specifically "For Enemies", and the few times it is used are in self-defense (Harry vs Draco, Harry vs Inferi) or to save someone (Snape vs Death Eater for Lupin). Snape's past is ravaged by severe bullying, including sexual assault and an attempt on his life, for which he was silenced by the authority of the school (and of the wizarding world). As many have said before, Sectumsempra is the penknife that the bullied kid brings in his pocket at school to protect himself from the bullies who get away with threatening his integrity scot-free (and are in fact praised for it). Consider the sexual assault as well: I'd find it very well acceptable that women carry a weapon to protect them from sexual assaulters, so we can find it very acceptable for Severus to do it after the Marauders' obsession with him (which led to at least one instance of public SA).
- Snape spent, as we know, between a few weeks/months and, what, two years under Voldemort's service? Then he spent the rest of his life (18 years) spying and undermining Voldemort. Lying to Voldemort's face, ya know. He did not spend a lifetime serving Voldemort, but you're right that he pretended to: that's also what showed him as stupidly brave and skillful. Look at what Karkaroff got. Now imagine that but 10 times worse for Snape considering he was an actual Order member, not just ratting out his ex DE friends (if he had any) to avoid Azkaban.
- We are also shown he saves his personal enemies (Lupin, Harry), sacrifices his soul for Dumbledore and Draco (but regrets it enough that the Avada may have not worked initially and that Snape cried his heart out, probably mending his soul through genuine regret), becomes an undercover agent (Snape's year was cold hell), and he saves as many people as he can: "Lately, only those whom I could not save." He used his knowledge in Dark Arts to save all the kids in Hogwarts and more, directly or indirectly: Harry (actually makes a particular vow for that, saves him several times), Neville (+ protects him from bodily harm at several instances), Luna, Ginny, Katie Bell, Draco, Montague... That is pretty much the definition of heroism. We are finally shown he accepts that he was used by Dumbledore and that he can never ensure Lily's will since Harry has to die for Voldemort to die; he decides to directly go against Lily's dying wish/act and save the world instead, showing Snape has enough of a moral compass of his own by the end of the saga to do what is right even if it goes against Lily.
- Barty Crouch Jr certainly was a bad person (tortured Neville's parents to insanity, triggered Neville in a PTSD-like way by purposefully Crucio'ing an enlarged spider in front of him, forced Harry to enter the Tournament with the intention of sending him to resurrect Voldemort and get him killed, tried to capture/kill Harry before Dumbledore-Snape-McGonagall intervened to save Harry, killed his father and transformed his corpse into a bone, etc etc, and was wholly into Voldemort worship), and never stopped being a bad person. He never was a hero. I know this is trending to steal Snape's story and slap it onto other Death Eaters like Regulus but this is getting ridiculous. Barty Crouch Jr of all people...
Snape is not for everyone either, but if you do love "seemingly bad characters, made more 3 dimensional and turned into heroes", then you will very probably love Snape. He is exactly written like that in HP. (Not Barty Crouch Jr, gosh...)
Do you want to read fics of him btw? For an introduction I advise Severitus (Snape mentors Harry), Snack and/or Snupin.