[Can we please do a little trim-and-quote instead of top-posting? It's making it hard to follow the conversation.]
I wrote:
They already exist. It's called Spamhaus. What's wrong with enhancing this extension: http://www.mediawiki.org/wiki/Extension:Check_Spambots
In article 1369440421.38235.YahooMailNeo@web161906.mail.bf1.yahoo.com, Al Johnson alj62888@yahoo.com writes:
I don't know. It seems like there are still problems with spam, but maybe that perception is incorrect.
Since I require users to be logged-in to edit and I don't have open automatic account creation, I have zero problems with respect to spam. I was planning on allowing account creation requests with admin approval to open up to the next level of user participation, but I would never open up my wiki to anonymous edits or account creation without some form of review.
Is there really nothing more that can be done?
If you aren't already doing the things listed here: http://www.mediawiki.org/wiki/Manual:Combating_spam
Then it seems obvious that is where you should start.
If you're saying that you're already doing everything listed there and you're still overwhelmed with spam, then I'd say that new techniques need to be developed or existing techniques for combatting spam improved.