Ya... there is a thread that was started about 10 months ago I believe... maybe less about a guy who painted a the front bumper cover black on his and was really satisfied... even after several pressure washes.
I just recently painted my sons old CR80 plastic from red-orange to black. Turned out pretty well. Haven't put it to the test yet, but am hoping it lasts pretty well. We did lightly (VERY lightly) sand the plastic first to remove old decal residue using a 200+ grade of sandpaper.