OOps, Sorry about posting, I just realized after reading a little closer that this is for donating members. I clicked on the link you gave and finally found out what that means. I'm so silly, all this time when I saw "donating member" under somebodys avatar I thought that just meant they had posted a certain # of times. Forgive me, I'm a little slow.
Now that I know what it means, I will be making a donation.