We've had a PM spammer again tonight. I've deleted that user and all PMs sent by him and the installed a vBulletin plugin that allows new users to send PMs only if they've made a minimum of three forum posts (except users of the ISPConfig Developers group and HowtoForge subscribers - they can send PMs no matter how many posts they've made). I'm not happy with this solution, but it's the best I can think of right now... If only I could bill someone for the time I've wasted in my life for fighting spammers...
its an up hill battle to win .... had a friend wiki being totaly spamded to death ... evey page spamed but an min post before PM you normal members is the best way to deal with it at the time and thanks for the heads up with the post was going to ask whats happen .. or we got pm spam again