Raize:

FIFO is the default for tax purposes, so absent a strong indication that it distorts your income, and I doubt that would be the case with bitcoin, this is relatively safe method overall.

You can not 'ask' the IRS to come visit you unless you apply for a letter ruling (a kind of guidance ruling along the lines of what Milly Bitcon/Atlantic City did with FinCEN).  Even then the decision is theirs.  I think I recall a prediction on this board that they would provide guidance before April 15th - I'm not holding my breath...

Rather than you test the IRSs position, it would be nice if you chimed in on the foundation to open a dialogue with the IRS or that they take steps to test the waters. 

But if you go it alone be careful what you wish for.  You will find that the government has an incredible number of ways to determine your assets, they are in no hurry, and if they want you, money is quite there for investigative work. You can be a little feisty today and not see it come back to haunt you for years.

There are ways to pressure the IRS to give clarity in the area, which is really what most want.  The virtual world companies have dealt with this for years - and the gamers - Blizzard, Second Life, etc.  I think we need to reach out to them as they have been there for a long time and we don't need to reinvent the wheel..... and by we I really mean we - not you as an individual.  Do not take the IRS on as a personal crusade.  Rather, be a catalyst and help pull a group together to represent us before them.

Hope I interpreted your post correctly......

bob