Yes it is used for some criminal activities but we should not care about it at all because this is life, the fact is that every currency has this down and dark side.
I do not care and I think its also logical and not so bad too.
yeah I think we should not care about it because using bitcoin you're free to do anything because it is the advantage of bitcoin right ? you're free to do anything in bitcoin because no one controls you in bitcoin, freedom is real