I think blind does this. But it's mostly like a forum. I don't think there's a review website that specializes in reviewing managers at companies.

Reviewers would have to register by company email of course to make sure they're legit.

>It got to be thousands of names long, and at least a few of the men didn't deserve to be on it.

I think there needs to be a voting process to make sure it's not a smear campaign generated by a small minority. If the votes cross a certain threshold all the negative reviews are revealed.