New kind of comment spam

I’ve seen a new kind of comment spam at MacMegasite recently. The title is always a single word or a name and the content is a long string of random words, each of them a link. I haven’t looked at the URLs or followed the links. I assume it’s to boost their page ranking. When I see one of those, I delete them on site. Today I added an IP deny for all of t-ipconnect.de, which is where most of them seem to be coming from. I may end up turning off anonymous posting of comments.