Flashes of Panic

I think someone’s trying to flood MT-Blacklist with junk. I’ve had, now, two different spam comments on old entries without real URLs, just (apparently) random seven-letter domains with (apparently) random subdomains and a dot-com on the end. Both messages contained mostly garbage text, with junk names and email addresses, then three domains: one in the link field of the submission, and after the garbage text in the body, an HTML line break followed by <a href="http://junk_url_2">link</a> http://junk_url_3.

I have to assume this is just some kind of crap-flood. I’m deleting the comments, but not reporting the URLs or putting them in the blacklist. Maybe it’s time I upgraded to MT 3.2? (Or switched to something else?)