Haha! That was *exactly* what I was going to post.

You and I are true pals now.
On criminal activity...
What criminal activity?
What property right violation would use bitcoin to hide itself from the state? Seems inconvenient to me as a step to avoid detection...
If you are thinking trading state mandated contraband is criminal activity, well, then so is bitcoin, as FRN are the only state mandated currency in the US, all others are contraband...