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...