Liking a bad thing might not make you a bad person, but fandom stans will abuse that concept to get a free pass for horrific personal behavior or defending child porn and Hitler
Any given thread about the excesses of "puriteens" or antis inevitably results in LoliFan1488 emerging to voice agreement.
And sometimes LoliFan1488 starts the thread, is very vague, and tries to conflate what they're doing with queerphobia
@ancient_domains_of_word liking a bad fandom you mean or bringing bad behavior to a fandom?