If you run some discussion forum probably you receive plenty of spammy posts. Check spammers' IPs, check their e-mail addresses, note: e-mail address must be verified, it means that forum members must verify their e-mail address before they are allowed to post (find this option in your forum settings). Of course then ban their IPs and e-mail addresses in your BAN CONTROL section. And afterwards send me these in order to share with the others.
You can also link to me
<a href="http://www.spam24.org/"> Spam24.org - Fight spam and spammers</a>