I've been thinking about this MOD since someone suggested it awhile back. We all hate spammers, and the ones that get through whatever anti-spam registration policies you have in place can be a pain. This is aimed to help make it a little easier on forum owners.
From the readme:
There are many ways to help keep automated spambots out of your forum. However, manual registrations by spammers can still get through. When you catch these members, you may want to simply lock them and go on with your life. However, these members often populate all (or nearly all) of the fields of their profile with spam links and other information. This MOD, with a single click, clears out all of those fields, turns off email for the user, and locks their profile.
Download from SnitzBitz.