Not to be a nag but he actually had 3 sacks last year.
http://www.nfl.com/players/playerpage/4508
I think he was a bit of a surprise release because the Chargers didn't even try to have him restructure. And basically nobody really anticipated him hitting the open market.
I think he's worth a look, he's only 29 and a change of scenery could help him revive his once promising career. But the fact nobody has jumped on him yet could be telling.