Hey Andy, your add-on is fantastic! I've got hundreds of rejected accounts cluttering my ACP, spammers cought via StopForumSpam, growing by a few every day. Installed this a couple of days ago and they've dropped to zero since they all use VPN or a proxy to do their dirty work. This has to be my favourite add-on of all your hundreds of useful add-ons that you've created, thankyou. :)
