Hmm, well if we got Javascript and things like then I guess we really should, especially if people are looking for somewhat CSS specific help, it would make the information much easier to find.
Yes, it should be a section as a lot of people are asking for CSS help and also there are others who are learning how to switch from <font> and that sort of stuff to CSS.
CSS is covers a lot, it can include changing your font to changing voices when reading your site. You should really learn it if you plan on making web sites/pages.
I have some resources for CSS, if anyone is needing any: