Something that would be neat (not in 1.5 either) would be to block posts on various other things – e.g. the name given by the spammer, or an url specified (either in the poster-info, or in the post). Since the blogspam follows some rules on these things – esp. the most regular ones – that would do nicely.
I am wondering where this spam comes from? Most of what I get has non-working links in anyway – whats the point exactly?