The Sixth Circuit Court of Appeals ruled on Friday that using sucks domains (in this case, taubmansucks.com) does not violate trademark protections. Opponents of sucks.com domains claim that their use causes marketplace confusion. This of course seems ridiculous. No reasonable person would expect Pepsico to market its products at the Web site pepsisucks.com. The appeals court seems to agree.
This means, of course, you're free to open michaeldietschsucks.com, if you care enough to do so.