I would say don't worry about it. I think I know the person you're talking about and they are known for carrying on and embellishing. Staying anonymous was probably the best decision for you because no one should have to go through harassment. Ignore the toxic people in the fandom. I know it's easier said than done, but they don't matter. Block, mute, do whatever you have to do in order to enjoy yourself. I cared a lot about what people thought in the past too, but with my heart issues and my health it's just not worth it. Mentally when I let people on the internet bother me it took its toll. People who want to cause drama just aren't worth it. On tumblr, twitter, etc we can control the environment that we want to have. Do that for yourself so you can enjoy your time and block anyone who makes you feel uncomfortable. There are a lot of people out there in the world that find joy in being mean to people. Don't let those kind of people bother you! Hope you have a happy new year and your holiday was good!