Guest Book Spam

Guestbook spamming has become a huge problem, which is why many sites are disabling theirs.
Hey John, that was me! I'm trying to earn some extra money on the side! ;)

Man, we are going to need something like a Do Not Call listing for websites now so we are somewhat protected from solicitors. Bad enough we had to "protect" our phones, now our websites!! ;)
Well, I went into my SQL database and discovered that the spammers were actually a single spammer, with the same IP address used each time. I've since deleted all the spam and banned that IP from posting. So maybe that will help for a while.