The only thing I would probably care about if I wanted to donate to Assange's support is that I would use a mixer, (in my country the secret services are not very friendly towards this kind of donation, simply adding such non-profit foundations to the register of undesirable organizations).
Questions were raised on the forum how canibalism13 and his team used the funds donated to their donation, but is anyone asking what does WikiLeaks or those representing themselves as WikiLeaks do with the money that is supposedly donated to support Assange? Are they transparent with the money that is spent?
I think Julian Assange will be extradited to the US sooner or later. They have such a hardon for him that they aren't going to let him slip away. Those who really want to help, should better contact the team that legally represents him -
Birnberg Peirce Solicitors. Ask them how to help...