It looks like a great site especially since you allow filtering to some extent. I was just deleting my account with Techrigy.com earlier since they just didn't get it right, MightyBrand has a lot of potential.

When I tried blocking an author though I got the following error from Google Chrome:

The webpage at http://mightybrand.com/brands/block has resulted in too many redirects. Clearing your cookies for this site may fix the problem. If not, it is possibly a server configuration issue and not a problem with your computer.

All the best,

Eiso