Does anyone know how. I have had like 10 spammers registering and filling the page with ads and links and porn

I run a WMPU site with about half a dozen users... I did a few things:

- There's a plugin to require completing a captcha when a user registers. I've had zero spam registrants since I installed it. I don't recall the name, but there are several out there.

- I disabled the creation of new blogs. I honestly don't recall how; I think it may now be an option in the Site Admin panel now. In the past, I'd simply comment out that chunk of code.

- Akismet rocks, BUT you're supposed to get a license key for each blog. My own blog on my WPMU site is one of the busier ones, so I run it on mine, and have a simple SQL query that does something like "SELECT DISTINCT 'ip_address' FROM wp_1_comments WHERE 'comment_approved' LIKE "spam" AND 'comment_posted' < DATE_SUB(NOW(), 3 DAYS)" -- I don't have the query in front of me so you might have to tweak the DATE_SUB() syntax and field names. But in essence, I pull out all IPs that've been labeled as spamming in the past 3 days, and then IP-ban all of them.

Posted By: kalyanI use the same api key on 4 blogs...

Yup, me too and says so right on the Akismet site or when activating I think?