What's up with the downvotes on this sub lately?

What's up with the downvotes on this sub lately? Literally almost every single comment of every single post is getting downvoted within the past few weeks. You will see comments that are kind and supportive getting automatically downvoted. People make a comment sharing their experience and get automatically downvoted. I know downvotes are not a big deal, but this is a support group and getting automatically downvoted by trolls for being vulnerable and sharing your experiences is discouraging for a lot of people. I don't know if these trolls actually stutter themselves or are just being mean by going to a stutter sub and downvoting every comment, but I feel like the mods need to do something about this. Literally every comment on every post on this sub gets at least one troll downvoting.