I believe that the person closest to Dans should/would make the 'Go Fund Me' page, the monies will be gotten by this person & then turned over to Dans.
Trustworthiness is required here as the money handler.
The GFM account has to be linked to a bank account, so whoever sets it up (Dans closest here) will need to give bank info just to set it up, then when funds are starting to build the bank account could be changed directly over to Dans.
OR Dans can set it up himself, but it really might be better to have someone else do it then turn it over to his account as mentioned above.
I believe there must be some transparency of real names being used by Dans as the recipient, that could be a small issue or a big one. Same with whoever sets it up, real name being used and linking to a bank account, of course those facts would be hidden from the public.
To end most discomfort to begin with it might be a good idea to get Dans permission to use HIS bank account & real name to set it up; eliminating any middleman having to divulge their particulars.
And finally of course as part of the setup process a nice concise story about Dans, his ailments and bills that he/they need help with.
I believe that none of us like Farcebook, but it's the way funds are raised, one by one people reach out to all of their Farcebook friends with a link to the GFM page, then you hope and pray it trends from there.
Or more simply, that same trusted person can be the 'bank' and receive from us stoners any donations to Dans, this can be achieved quite anonymously by using the 'GreenDot' VISA debit cards available @ Wal-Mart. Money can be transferred from one card to another. But probably a zero chance of this to be 'trending' beyond this circle of friends.
I use the GreenDot cards to avoid putting cash into my bank account, I put it on the GreenDot & I use it for Amazon & eBay (linked to my paypal) purchases, or anything else when I have excess cash on the card.