I actually gave up on the wpMU concept yesterday .. offering other people to have sites on my installation, besides me.
But the sploggers made me quit again - I admit in shame that I just can't take the lost time in moderating this venture. Every day, I have had about 30-40 new users and splogs created and every day I delete 30-40 new users and splogs created. And I'm using WHM and ConfigServer Security & Firewall plugin and it's like a one step process to permanently ban any IP in 5 seconds .. but it still takes time to make sure I have all the users and sites marked as spam and delete them.
It sure took the cake today when AFTER I disabled all registration yesterday ... and 4 new splog users/sites were created on my blog today. http://PetLvr-Blogs.com ...
How can that happen?
What are you guys doing to combat the bots? I can't believe my only option to stop them is to join a membership site wpmudev or purchase "pro" version plugins gd press tools to combat this. Isn't there an Akismet-type of plugin available for this yet?