I don't see anything wrong with showing who donated and how much the donation status is. If there are users of this site that are using it for free and never donating, then maybe they need to "CHIP IN". Nothing in life is free. But please don't forget those who have donated in the past and might have donated a good sum of money early on. Looking at the site and the Forums, listening to the music is great. But if people are voying or posting in the Forums and never contributing, maybe this is an area you can exclude people. To participate in these forums and casts votes for various things should require at least a minmum fee for participation.
Once again, just my view on this subject.