"Tor" is for "Onion Routing", it uses layers upon layers of encryption and relays to communicate anonymously.You probably want to protect your IP with a VPN to start, most busts occur due to outside activity from the darknet that leads to a particular users activity. It's actual encryption is heavy and very hard to break. Never been down there but I'm sure everything goes if you look long enough. For some its a place of political freedom due to some countries laws, some press companies have anonymous reporting hubs there for data and sources. Then there's the all the "other" stuff....
BTW newbie hello. Chemist by trade, find the bodybuilding regime very interesting and enjoyable.