Are you sure it’s not a you thing?
There's that reddit-esque toxicity, missed that /s why make gaslighting comments like this? As someone pointed out below, most subreddits have karma barriers, and top-level subreddits like 'gaming' also put into place ridiculous rules like no reddit auto-generated usernames, which isn't something that reddit tells you when you signup. So you make an account, have genuine interactions, then get permabanned from 90% of the community because of a rule meant to deter bots (that doesn't even work). My karma on reddit is generally positive, but that doesn't matter because moderator opinions over-rule the karma system, which makes no f*cking sense. If people genuinely like your post and appreciate it, but the mod of the subreddit doesn't like it, banned. Mod doesn't like you, banned. Mod doesn't like other communities you've commented on, ban. There was a whole debacle about unpopular opinion banning people for commenting on another subreddit so people made true unpopular opinion and true off my chest...and now both of those are just as exclusive and toxic.
So tl;dr: No it's not "just a me thing"
It's been proven echo chambers don't make for a better world to live in