Last night, I saw a movie called Unfriended: Dark Web wherein one of the main characters stole a laptop, which he later found out that it is owned by a member of an anonymous group in a Dark Web. This member sent him bitcoins totaling to $10m to make him do terrible things, dragging his friends into this mess. This got me thinking, I know it is probably possible to use crypto for dark web, but if this is how it is going to be, don't you think that this will make bitcoins and other altcoins dangerous? Can a person really use cryptocurrency for Dark Web?

PS: I am not planning to use cryptocurrency for dark web, I am simply asking if it is indeed possible and its dangers.