... about 2 or 3 years ago, when I was still on Plebbit... noticing that there was a clear and severe astroturding campaign against "anti-vaxxers."

It struck me as incredibly strange at the time, virtually all subreddits got infiltrated with "pro-vaxxers" who would take every opportunity and do everything they could to insert jokes about antivaxxers or somehow relate every post to pro-vaxxing propganda. And this was on subreddits thay had absolutely nothing to do with vaxxing or health or anything.

Like I said, it struck me as extrenely noticeable as an organized campaign and seemed incredibly strange at the time.

Sure seems funny, looking back on it now.