Therefore, I've created "nospam" pages on many wikis, listing the most created pages, and locking them agasint recreation.
Have you proposed to the devs to implement this list in the software so that it can be easier pass to any project/languages?
What I am thinking about is something like http://meta.wikimedia.org/wiki/Spam_blacklist (all project-wise) or something single project wise like http://meta.wikimedia.org/wiki/MediaWiki:Spam-blacklist
The page http://meta.wikimedia.org/wiki/Anti-vandalism_ideas and the Wikitech-l mailing list seem good place where to discuss this possibility.
AnyFile