It is not 100% anonymous
The anonymity on the dark web is not 100%. Your cover can be blown, again, with the use of the right program. A good example of this is the Silk Road founder, Ross Ulbricht who left several digital artifacts, including his Gmail address, on clearnet forums related to his Dark Web activity. Ulbricht’s digital breadcrumb trails helped the FBI uncover his IRL identity and he was arrested and sentenced to life in jail. Silk Road is a marketplace for buying drugs.
Culled Jumia Travel