Why has this sub seemed so hostile lately?

Why has this sub seemed so hostile lately? It seems like there is a good number of trolls here who just like to be nasty for no reason. Literally every single comment gets downvoted lately. You could make a comment saying "I'm happy I've been starting to accept my stutter more" and get automatically downvoted within a few minutes. It seems like whenever I post there always seems to be at least a few snarky and rude comments. I don't understand, this is a stutter support group, we are supposed to be supportive of eachother. Do people who stutter just hate other people who stutter? Or are there just a bunch of fluent bullies here who like to go to a stuttering subreddit and downvote every single comment just to be mean? I literally recently saw a comment of someone putting laughing emojis under someone's post who was talking about how they've been suicidal. This is not ok on a support group like this. I feel like the mods need to do something about the trolls here.