Avvo — junk

What they do is unfair at least.
I worked with a lawyer who was a piece of crap, didn't do his job properly, but was very professional in taking my money as fast as possible.
I wrote a negative review about him on Avvo. Do you know what they did?
They sent it to him to get his confirmation that he has nothing against my review. Of course, he said that he's against it and doesn't want it to be posted. So they didn't.
Is it normal? Do they post only good reviews or what?
So if you see negative reviews, it means that this lawyer who verified them is an honest person and isn't afraid to ruin his/her reputation.