How often do you think you'll have projects which do not recognize previous "donations" as valid?
I think that's one of the problems with accepting donations at all, people think you owe them something, then the new people feel indignant since they didn't receive any of the money, which turns into a vicious circle.
I know everyone wants to feel their time is valued, just maybe there is some other way to contribute to Open Source projects without just putting it into one person's hands(to run off with).

Anyone want to setup an Open Source Trust Fund site?
