Please verify: I think I spot somebody that was able to "squat" a couple of comments of mine on a post.
My upvote was taken away from 3 comments and attributed to different users.
As per picture I had to repost my upvote to my own comment.
I checked some comments of the same post didn't have the upvote of their owner. Pretty much unlikely they took it away by their will cos the post and comments were highly rewarded.