Removing the password for login to the threads obviously removes a layer of security, but yes, if you hide the forums behind a HTTP password then you're "protected" from spammers to a degree. You're also locking out legitimate search engine spiders, though that may not be of interest?

EDIT: And of course - how will you know who's made a post if they're not logged in?!

Last edited by Neil White; 05/13/2009 12:22 PM. Reason: Afterthought :)