With reference to the paper I mentioned last month, I just noticed that the last (presumably) Referee #1 added their comments some time ago...and within 20 minutes, Ref #2 had added a somewhat abusive rejoinder! That's his 4th contribution so far, and he's looking increasingly obsessed IMO. OK, perhaps "abusive" is a bit strong - it is only a rather feeble ad-hom, the sort of thing I wouldn't be surprised to see on usenet or a blog, but hardly what I'd expect in a referee's comment. Maybe I've just had a sheltered life. But anyway, it seems to me that the effort he's making to block the paper is rather more embarassing than the paper's publication itself could ever be.