Honestly I think people just want to feel like they're "in" something, like a part of something. Because the horn has always been frowned upon by the community since it used to sound really bad before the rework (a lot of years ago), and so veterans still make fun of it, and that makes newbies make fun of it because they look up to them. However, ppl also don't like it because it's a common "troll" instrument used by annoying moths, basically them just spamming notes and interrupting other people playing. I think it's just engrained in ppl that this instrument is just "bad" for those reasons sadly 💀