Yeah, that's all well and good if it's a real complaint. How many complaints have you seen on a lot of boards that just aren't real? Not only that, sometimes the person making the complaint is the one at fault.
Tell Oscar is good if the complaint is real, not so good if it's not. And there's no way to refute them, so there's no way for people to know the difference.
What it is to the casual observer is a list of complaints.
It could be better than any of these other places - particularly for Canadians. But it needs a little more interaction somewhere to make it really useful.