I love the idea of using steemit for charity! It would be better to have some confirmation for these kind of posts that accumulate a lot of traction without any verification. Not saying you are benefiting off of someone elses back but it did happen on this platform in the past.
I just created free stickers that I'am sending out to people. Worldwide. For free. People could for example use them in order to brand their post images and at the same time verify themself a bit.
They are available here: https://steemit.com/steemit/@dunja/free-steemit-stickers