which also gets ignored by rogue bots..

ideally, you simply make all your forums require a user sign up.. you might also enable captcha at both signup and posting for a default 'lower than whale dung' group wink

no guests at all allowed..

then at most a rogue bot will 'crawl' the open stuff, which ain't much.. maybe you have a portal page with articles about basket weaving and such laugh

i assume you site has a lot to do with government secrets? [Linked Image from sirdude.com]