I am not using Bitcoin for "Dark Use" or illegal transactions. I am more of an investor and doing signature campaigns to get some extra money to spend in my expenses. But Bitcoin is actually being used for it. This is because the idea of Bitcoin with anonymous transactions is an opportunity for them. This is also why the government is trying to regulate Bitcoin. Some countries even banned it already and the same reason that shut down Bitcoin companies for trading.
I guess it is not east to avoid people who would take opportunity in bitcoin either good or bad. It is really not easy to track where the money would go so their are really some exchange sites that are already requiring basic identity verification. Which is hard to understand for other users saying it is a hussle butf for me, that could also be a good thing to at least have records on who is using and getting money.