'This.'<p>That is my current annoyance. I don't know where it started, but since a few weeks 'this' seems to be turning up in more and more places. I really can't parse it, but I think it means agreement with the previous comment, sort of like an upvote.<p>It bugs the hell out of me.<p>Random example: <a href="http://news.ycombinator.com/item?id=875816" rel="nofollow">http://news.ycombinator.com/item?id=875816</a>