>>4873454/mlp/ members are fucking schizos and the people at Hasbro that were steering the show in the later years undid and ruined most of the things that the fans enjoyed, all of it with a blatant virtue-signaling angle.
Also after the show ended the fan community has imploded also, primarily over an old and dead Nazi joke getting revived and most of the fanfiction archiving sites purging content that didn't align with hosts' views.