So, from what I’ve seen, people don’t like her for some of the same reason’s they don’t like Thomas. She tends to cling to Thomas and defend him even when he’s being rude to fans, and she herself can be rude to fans too. A couple of times she’s done threads “exposing fandom Lila’s” or basically people who make up spoilers to get attention, and it rubs people the wrong way because instead of just announcing, hey this info is false, she goes out of her way to humiliate and make fun of said people. I think it just boils down to people don’t like her attitude and how she thinks Thomas can do no wrong when in fact he can.
Another thing that pissed off a lot of creators I know is she has a thread on her twitter back from like last October or so where she basically dissed all fanfic writers saying that their works were horribly ooc and that she can’t stand them because they aren’t 100% canon and how she only wants to interact with material that’s 100% canon, and she cringes anytime she reads fanfictions (mind you she has her own fic that she was writing, hasn’t updated in a while iirc). So it just rubbed a lot of fan creators wrong because she was basically saying that their works have no value because they aren’t canon which like the whole point of fanfiction is that it’s not canon, so I dunno that’s just my two cents.
She also boasts about how she never posts spoilers, but I’ve seen screenshots where she tells her friends in their discord server spoilers for upcoming episodes, and she kind of does so in a ‘tee hee I know spoiler things aren’t I cool?’ kind of way. But that’s just things I’ve observed across various discord servers I’m in. I don’t particularly care about her one way or the other.