CSS Lint was created by Nicole Sullivan and Nicholas C. Zakas. Based on the conversations thus far is bound to become as infamous as JSLint. However, since CSS Lint is open source, if you don't like the rules, you can host your own version and change the rules.
Many of the seemingly strange rules (such as "IDs shouldn't be used in selectors") stem from object oriented CSS, a paradigm promoted by Sullivan.
Here's a video by Sullivan on the subject:Discuss