However I do imagine that someday we will start to see busts related to Tor compromises. Just adding a few high bandwidth entry guards to the network and running a high profile clearnet sting CP site for example, or monitoring one, is going to be enough for an attacker to pwn dozens or maybe even hundreds of Tor users every month. It wont let them trace any given suspect that they want to, but it will certainly be enough for them to identify many people using Tor to engage in illegal activity. I wouldn't even be that surprised if they trace freedom hosting and passively monitor it for a year or two, letting it continue to run but waiting for targets to use one of their entry guards to access a CP site hosted on it. They could do the same thing to Silk Road as well, and again it wouldn't be enough for them to say "Vendor Bob sure is selling a lot of Heroin, let's trace him!", but it would be enough for them to say "This month these fifty random people used one of our entry guards and we identified them accessing SR with a timing attack!".