I have been doing some casual research on a bunch of forums & sites (HYIP) which deal with LR. It seems the consensus (simplified by me) is that "Bitcoin is hard, volatile, and too risky". The vast majority seem to be going from one failed centralized virtual currency to another one (i.e. Perfect Money, HD Money, etc).
Yeah true, HYIP guys don't want to use bitcoin because price is not stable and it's doesn't fits into HYIP structure.