Need to start re-reading the books again.  Pronto.

Pretty much anybody with a bb style forum gets oodles of these guys. The clutter they cause tends to bog down the mysql database back end, causing the site to be slow, unresponsive an occasionally crash...like these forums are prone to do (as well as many others). Most of them are bots.

Two levels of enforcement that tend to work are:
1) Increasing the obfuscation on the secret word for account creation to maximum. (For some reason the good bots can still manipulate the first two levels of obfuscation.)
2) Enforcing hand-approved account creation. (This one is a pain for a large site, as the approvals required can quickly out-pace and administrator.)

A way it's handled on some sites is restricting new members to certain portions of a board until their posts can be approved or disapproved.  That way you see which ones are definitely junk.  Again, this method works pretty well with either a smaller volume of traffic or a lot of people to police it.  There's a couple of spambot restricting mods out there.  Don't know how well they work, though. 

Really appreciate all the hard work and effort put into the RPG.  Thank you very much!

Hello, Lenny, welcome to the boards.

The 320-page Black Company campaign setting from Green Ronin costs $45, comparable speaking.