Topic Links 2.0 Onion -

You must enable HiddenServiceSingleHopMode and DHTClient in your torrc file (advanced users only) to participate in the DHT.

It is not a panacea. The requirement for technical literacy, the risk of metadata leakage, and the ongoing cat-and-mouse game with adversarial peers mean that it remains a tool for power users, activists, and cybercriminals alike. However, for those who need resilient, verifiable, and censorship-resistant access to hidden services, Topic Links 2.0 is the only viable standard on the horizon. Topic Links 2.0 Onion

Some argue that while the protocol is decentralized, only two or three clients (Knot-Index and OnionFeed) dominate usage. If those clients have bugs or backdoors, the whole system collapses. the risk of metadata leakage