Anyone else had problems with downvoting bots? - sh.itjust.works

Earlier today I made a comment that someone must have found controversial, because I noticed that all of my posts and most of my comments made in the last month have received about a dozen downvotes each, all happening today. Has anyone experienced anything similar and is there anything that can be done to combat that sort of thing from happening? I think that reddit used to only shadow downvote when voting from a user’s profile. I’m assuming Lemmy isn’t that advanced yet.