This is my take navigating the Tor network safely, maintaining anonymity taking care of security are crucial. The following are aspects I consider important when using Tor, and if you just want to browse the DN while staying away from illegalities you don't have much to worry about. First thing always use the Official Tor Browser and ideally set it on the safest settings (disable JavaScript) and keep it updated to ensure you have the latest security patches and features.
Do not install additional plugins or add-ons in the Tor Browser, as they can compromise your anonymity and security. Be very cautious with downloads on the DN as they may contain malware. If you download files only do so from trusted sources.
Avoid revealing any personal information while using the Tor network, such as your real name, location, or other identifiable details.