content: Nota bene: the article is about how Bitcoin's transaction history de-anonymizes trades done over Tor, not about Tor's vulnerabilities themselves. And they also assume that the data they uncovered is "sloppy" rather than "carefully constructed."  Also from the article:  Events like those have helped make cryptocurrency users increasingly wary of Bitcoin's privacy pitfalls. Earlier this month, cryptocurrency research firm Chainalysis noted that dark web transactions now account for just one percent of bitcoin transactions, down from 30 percent in 2012.   Because the market has grown beyond cypherpunks, and this doesn't support the idea that existing users changed their methods. The authors are very sloppy, and I wouldn't take any of their conclusions seriously.