in the most charitable and well-intentioned sense possible, displaying "LGBT imagery" is supposed to be a signal which states "I'm not going to bully you" and a lot of gay people feel helped by that because they are used to being treated badly sometimes and they feel like it's unfair.

if I see a person displaying "LGBT imagery" I can feel certain that I can casually mention that I had a nice vacation with my boyfriend and the chance of being mistreated for saying it is zero. gay people navigate social situations with a constant concern that they may be mistreated by others if they mention for example their significant other.

while I understand that "LGBT imagery" is useful in this regard, I recognize that it gets attached to a lot of other ideas I don't personally agree with. I like that I can see a person displaying "LGBT imagery" and feel certain that they aren't going to bully me, but on the other hand, I find myself assuming that they are more likely to be a socialist or a censorship apologist or someone who tolerates medically transitioning children. it's attached to too many things.