This is a particularly low-tier way to troll on Reddit. It doesn’t seem like the problem is drastic there, or even here on HN. I think the problem does stem from a retweet having a vibe of “I endorse this message.”, regardless of what the retweeter has written in their bio.
Since Twitter has effectively moved the default away from chronological order, what is really the purpose of a retweet? An upvote is naturally a positive interaction for “suggested tweets my followers should see”