Randy, check out this thread and let us know if you feel as I do, that this is a scam.
http://www.flyertalk.com/forum/Forum21/HTML/002831.html

Are there similar threads on the other airline boards? If so, obtain this person's email address from some of the posters and you should make sure that this individual is blocked from any posts on FT.

You should also post a warning on the boards making people aware of what is happening. There are many legitimate charities that miles can be donated to with the assurance that they are going to worthwhile people.