I've been seeing some weird things with comments lately. A lot of people, when responding to quotes, have just had the quote as their comment, with no added info. Here's an example: http://e621.net/post/show/66433
Evangel's comment is just a quote of XToxicEnvyX's comment. At first I assumed that people were just seconding what other people had said by repeating it, but then I saw a thread that went like this:
http://e621.net/post/show/67765/2009-canine-fox-foxtaur-gun-male-mayra_boyle-snipe
In which someone commented with what looked like just a straight-up quote of a comment, but then a later commenter quoted that person as having said something else.

So now I'm wondering if there's some glitch that is making certain comments not display properly. Has anyone else been seeing this lately?