We have a user on our site who has registered over 150 accounts in the past 6 months, each using a different e-mail address and a proxy to change IPs. He's also found a way to bypass our evercookies. He abuses both the forums and PM with these usernames.

We are hoping to implement something that would prevent users from sending PMs until they have 10 posts. We also want to prevent the number of times a person can post in a single day. We'd like to make it so that for the first 5 posts a person makes, it has to be separated a day apart. That is to say, 1 post per day until you reach 5 posts.

Has anyone done something like this before that could provide the logic or assistance with the easiest way to do it with GT.

Thanks