RE: Why are there no postings for charity?

I think often at least it is. The more "decentralized", "direct" and "investment" like the 'charity' so to speak is, the better it usually turns out.

Darthnavas post was a good example.

• He had built personal trust with the community
• He needed money for a specific and identifiable cause
• It was a real emergency and not just something he could scrape by without or save up to
• He made sure to provide proof and updates along the way

With large organisations, this is usually very hard to do and often not even something that the leadership of such organisations want to do.