I see what you mean - yes, the target charities have to be clean in clear in their finances.. But our efforts to verify them limit to their public information available. We'll do our best to check every cause we are sending money to, but there's never a 100% way to be sure that they don't misuse the money, that's true. That is also why I don't just repost all charity posts from Steemit, but I read about each charity before posting!