Same thing happened to me. I admit I'll rage post sometimes and sure I might deserve a subreddit ban here or there. But I've never done anything worthy of a site-wide ban. But the reddit admins act like dictators on a power trip. They LOVE to slap people with site-wide bans. For no good reason, and I don't understand it. The admins have turned the whole site toxic, and places like Lemmy are a direct response to their insane powertripping.
Right now it sucks. Reddit is still the most popular forum on the internet. I pray that someday it won't be.
reddit upped thier filters recently, so the subreddit mods did the same as well, its pretty hard to justify commenting on it now. ive been on subs like LAMF, FACEPALm for a long time, suddenly some of my accounts can comment because of them claiming an increased in spam.