Check the updated rActionButtonStyler aswell. I fixed all the taints. Basically the solution is to remove all dummy functions. Check the DIFF:
http://code.google.com/p/rothui/sour...ns.lua&old=788
Your raid function does NOT work. I had this aswell. You grab a taint if raid changes size in combat. The raid may not show up but you get a taint.
Using dummy functions to prevent a Blizzard function from being called will net you a taint in combat. You have to work around that by using hooksecurefunc, SetAlpha/SetScale and hide the frame once you are OOC.
Currently I'm taint free. Be it actionbars or raid frames. I'm happy now.