As the original commenter pointed out, neonazi networks using their connections in law enforcement and other corporations (or simply setting up honeypots) are a real concern for personal safety.

EDIT: For what it's worth, if neonazis are not a threat where you reside (where is that and how can i get citizenship?), any bad actor could engage in the same kind of behavior, whether it's a political police, an industrial group whose corruption/pollution you're fighting, a local mafia who wants to ruin you...

Yes. That experience made me change to that. But “John Doe” will quickly be my IP address when there’s a Nazi in police (see the reports about organized Neonazis in police and military in Germany in the past few years who also leaked police data to other Neonazis).

I can use Tor or I can use Freenet. That’s it. I use both: Tor to google simple medical questions. Freenet to discuss. Because in Freenet — different from Tor — the Forums don’t die and the prevailing forums don’t block me with neigh unsolvable CAPTCHAs.