I think this is a reflection on both the character of the man who donated and the man who set up the site.
One is a naive but kind hearted and generous man, the other a cold and calculating scammer,
Unfortunately the world is full of the latter and whilst people want to help they will prosper.
Put it down to experience and forget about it, after all, we all get ripped off daily by many legal scam artists. The government being the biggest.