Do we have any legal experts that would either like to chime in on this or discuss it with Bob Lusk? I can see some liability issues that could come with unsubstantiated claims.
I don't think that PB would be held liable for someone coming on here and stating their opinion, weather it be positive or negative. I can see where things could turn south in a discussion real fast, but in general, people have a right to voice their opinion. It already happens here on PB every day. Heck, the internet was built on unsubstaniated claims!
But seriously, I can see some contractor having his friends log on to "pad" his positive score or to discredit his competition. You'd always wonder about members with only one post that were giving feedback in that section. That being said, I say that it could be a useful tool for the future pondmeister.
