New tactic of Spammers

I imagine they have realized that most old timers can spot them coming (no pun intended) from a mile away!
The new spammers now will post comments on people's posts, and then in their status the link to their web places. Sometimes the comments make sense and other times not at all!

Beware that if they have no favorites or postings of their own, and have a link that does not enhance or add to what they post here, it probably is spam.
Hope this helps someone!
Rafael