they added code that insta-deletes anything Celko posts
Still dates the thread though, so I visit the thread trying to work out what has changed. Clearly no new post ... so I then work my way through the threads trying to find an EDIT with a recent date ...
Other forums that I use, with newer software, seems to be much more immune to SPAM - e.g.
Trusted members (e.g. > Nnnn posts) who flag a post cause it to be quarantined immediately so at least subsequent visitors, including "regulars", don't see it. Multiple FLAGging by folk with fewer posts has the same effect. I see the same username here posting SPAM repeatedly ... a flagging system that quarantined their account would be my solution.
New forum software has lots of facilities for limiting what Newbies can do - e.g. attach images, use URL tags, and so on. Also distribution of a centrally maintained list of suspect IP addresses.