Look one way or the other, you're going to have to convert it to dollars, right? I mean you can't keep it virtual forever.
I for one don't have any plans to convert my "personal" bitcoins back to fiat money in the near or distant future, with the exception of acting as a middleman. However, when I spend coins, it us usually converted to fiat by the other party, and therefore taxed, so you are effectively right.
Or now they will tax also my EVE Online ISK?
I guess the question is, what if you accumulate all your profits as something that cannot be taxed, but can be exchanged?