Federal agencies operate enough exit nodes to make Tor use risky at best. I have no idea if they have since implemented some feature to prevent this but if not I would stay far away from Tor if you're planning to do illegal things. There's also the risk of trusting service operators to secure any PII you expose on marketplaces.
Not that I think the Fed's would blow their cover to hunt down people buying drugs but still seems stupid to trust.
Not that I think the Fed's would blow their cover to hunt down people buying drugs but still seems stupid to trust.