laundering money around, maybe it's a bitcoin cleaning service or just some silk road dealer washing funds.
you're supposed to move BTCs around in small amounts to increase anonymity
What is "Silk Road" in this context ? I Googled it, but all it seems to come up with is trade routes linking Africa, Europe, and Asia. I am guessing it is something other than that.
Silk road is site where you can buy drugs with bitcoin.