No, I have trouble reading things that are in other colours.
I suppose the colours could be turned off as a user option (I guess that is implemented already) but often they can be used for useful things (highlighting important information, not making your post look pretty).
edit - Trolls/clowns would select colours that are hard to read ("transparent") just to cause problems as well.
This post was edited by Terrible_One on Sep 1 2010 12:45pm