Firstly, it is highly unlikely that putting me on program, or even another Hugo nomination, would be sufficient to get me a visa to the USA for Reno. The State Department has already made it very clear that they see no value in the (non-profit) work I do for the SF community, and this would be more of the same.
Secondly, applying for the visa, with the attendant need to clear my name, would cost at least $7,000, possibly a lot more. Immigration lawyers do not work for free.
Finally, I have pretty much only one shot at this. If I apply again and get turned down again them I can probably kiss goodbye to any chance of getting back to the US. Therefore, even if you can find a lawyer who will work for free, or somehow raise the money, I would be unwilling to roll the dice at this point.
And you know, if people have that much money to throw around, I can think of much better causes than my travel budget.
The right thing to do — for me, for Reno and for other conventions — is to make better use of the Internet in doing online programming.