I saw this post in reddit and I completely agree with the OP:
https://www.reddit.com/r/Bitcoin/comments/9z0k1v/unpopular_opinion_those_who_use_bitcoin_to_buy/"Im not the first person to say this and I wont be the last, treating bitcoin as an investment and leaving it in a wallet for years at a time does nothing for the coin or the community. As much as it puts a bad taste in congressional mouths and casts a dark shadow on bitcoin, people who use it to buy stuff on the dark net are using bitcoin for its intended purposes
You know, as a currency?"
I think I've been saying this for so long now. Until the time comes that bitcoin is used as a currency, it's never going to be stable. If you dont spend it, you are not going to create demand, and if you dont create demand, might as well stop mining it.
Using bitcoin as a currency does not necessarily mean it has to used to buy drugs. Drugs in this case being the illegal and hard ones that the problem they cause to the society does not justify whatever means used to get it in the first place. While those who hold are not doing any good based on submission, it does not mean they are opening doors for it to be used illegally by others. There are other means that bitcoin can be used as a currency which is currently being done by the developers of various peer to peer platforms and nothing illegal is being done here. I personally don't think there is any justification for the use of bitcoin for things that would cause more harm than good in the long run.