I also used to have a Reddit account but, like Facebook, more often than not, when I left it I would feel worse than when I logged in. Once that starts happening with a site, I stop going and delete my account. I'm not exactly sure when it happened with Reddit, but it's been about a year and a half to two years since I've logged on, now. The site just got angrier and angrier, regardless of the subreddit. I tended to stick to the more technical subreddits, and even there squabbles were breaking out and the moderators were not reigning it in =[
Reddit is uniquely toxic, even (sometimes especially) in small communities. Whenever I bring this up, I almost always get a few people telling me to "stick to small communities", but those can be even worse since you can't really 'hide in the crowd'.
There's a lot of alarming behaviors there that are considered normal. There's also real-world stalking, doxing, and violence that happens on Reddit. I've seen people get followed across alt accounts by folks who have a bone to pick with them. Some of the stuff I've seen happen, and have experienced, on that platform is frightening.