CSS compression is a spamming technique?

[Jake]

Google is sensitive to possible "cloaking" techniques that may be showing their spiders a different version than regular visitors. Compressed files might be an obstacle to their spiders which examine raw code, they don't view a browser screen.

I have to wonder about the gains from compressing code, is it that much of a performance booster, do all browsers recognize it?

Here's a tool to view your site through several browsers
http://browsershots.org/