Here is a fun list of reason why your website sucks. There are plenty more, but this is all I can think of at the moment.

1. Something blinks on your site that isn't an Advertisement.
2. OR something blinks then talks!
3. Someones Myspace page looks better than your site.
4. You paid someone 10,000 dollars for ranking #1 in a particular keyword because you know nothing about SEO
5. You think installing wordpress and changing themes is an accomplishment
6. You have a HUGE "Add to RSS" button on your site
7. Your submitting your site to every social news network imaginable.