Mike Arrington of TechCrunch shared his list of Web 2.0 Companies he could not live without, and on the point of Wordpress.
Their Akismet spam comment blocking service is a godsend - without it we would quite simply be overrun with spam. It catches 15,000 or more spam comments per day and auto-deletes them.
I agree that Akismet has been a great help keeping the number of spams down here. It might not be 15,000 comment spams a day, but since I first deployed Akismet plugin on this blog, it has already blocked 220,000+ spams for me.
So you'll know it when Akismet is offline -- lots of comment spams came through waiting for manual moderation. I can't seem to get onto their website, and their blog returns system error 500 every now and then. Anyone else experiencing the same? I won't be surprised if they get DDoS'ed, which seems to be the norm these days with all the spam-fighting companies.