>>21637134they'll never forgive her/like her.
Her existence is what they hate, and have always hated, don't let their schizos post fool you about how "They used to be big fans but then she did 'x'!".
The best thing she can do is to just keep shit talking them and making fun of them on her alt account like she has been.
Imagine someone going through your old forum/4chan posts from 5+ years ago and pretending/making it out that you said this shit yesterday to all your friends/family/bosses.
The main reason you can't "ignore the antis" is that they don't go away and they fester/keep spreading the false information if you don't get ahead of it, but obviously she shouldn't post on her hololive account or you'll get a repeat of the "Lean" shit and more ammo for the antis.