If you all of a sudden start getting replies to comments from names/avatars that kind of look familiar but the comments themselves are waaaaaay out of line with your perception of and history of that person, check their commenting history because there are A LOT of burners popping up trying to impersonate long-time commenters.

It's possibly the stupidest thing I've ever seen, but this IS the internet, after all. I'm not surprised by much.