In the current implementation of my blog software, when someone sends a trackback request, there’s no check to make sure that the remote page actually links to this site. So as you might imagine, I get quite a bit of trackback spam — bogus trackback requests that specify URLs for drug sites, porn sites, etc. It used to be something on the order of 20-30 per day, whereas by contrast, I’d only get one comment (spam of course) every few days. But when I just went to clear out the spam from my database, I saw about 40 spam comments compared to only 2 spam trackbacks. So I have to wonder, are spammers finding comments more profitable than trackbacks? Are they wising up to the fact that comments appear on this site automatically whereas trackbacks don’t? (Doubtful, since my site isn’t really worth that kind of attention)