The Phantom Menace: Is Comment Spam Killing Your Site?

Comment spam is a thing of the past. Or so I thought. Then, one Friday night an alert popped up saying one of our web servers was down. Whilst hunting the problem, I discovered that it might still be a major problem for websites and had a go at some code to tackle it. Why bother? Over the last week 1,774 IP addresses posted 16,149 comments. Or at least they tried.