He's wrong. There isn't. Like much of craigslist, it's a scam.
I texted him and he assured me he could jb an ipad2 on any firmware except 4.3.3. I'm setting up a meet with him, said he can do it with his laptop so we're meeting closer to my house, at a restaurant, out of ghettoville.
If he can do it, I'll gladly give him the $20 he wants, it's what I usually donate per jb anyways.
We're meeting tomorrow, I'll be back with an update then.