There is definitely merit to what you described as a way to benefit a charity. A public vote would bring a lot of users together to gain some form of consensus but on a personal level I have always been highly skeptical when it comes to giving my own money to others to donate so I am not sure if an idea such as this would gain momentum, it depends on how forum members feel about it and the voting process involved.
Several users started threads asking for funds to donate to people in need, I respect their intentions but I would never donate to them simply because I have a policy that I never give my donations to others to give. Quite simply when I have the means I like to donate directly from my hand to the donor.
If the end result or aim is to donate to charity and that is after there are enough funds secure to keep the forum operating for years to come (therefore surplus funds) then maybe your idea would be a good way of giving back to people who need help. It would be interesting to see how much this forum could generate every year for charity. I suppose many newbies would be happy in the knowledge their Copper Membership funds would be donated to charity rather than be added to a pot that already seems to looking financially healthy.
When you mention about giving to charity you do mean directly right, or do you mean to donate it to the forum and allow the moderators/admin to forward the donation? I am trying to work out where the higher title you refer to comes in to play here.
Well I envisioned it as being like the current Copper Membership where you pay to the forum and the rank is automatically credited to you, and then every month or quarter or whatever the forum donates it to charity. You could have a public vote on where the money goes or something. I suppose you could also personally donate it to a charity of your choosing but that would require manual verification by staff somehow to make sure people don't cheat it. Signing a message from the address you just used would work but staff will still have to verify that unless you could automate the verification somehow.