I agree completely with Michael Snow and Delphine. The impulse is understandable, but it's a mistake to encourage a misunderstanding that can undermine the confidence of the public in Wikipedia's independence and create confusion about the structure of the WMF and its projects.
Furthermore, although a fundraiser is a great time to make money, it's also supposed to go hand-in-hand with educating the public. At least that's what they told me when I used to go door to door raising funds for an environmental group. I believed it and I had no trouble making quota.