The different arms of the party were known for using different tactics, but in general they were masters of self-promotion in the press and on the streets. Their biggest worry would be other party members looking to grab power from within. It was very similar to how Scientology relies on its own members to snitch on each other in order to gain power and credibility inside the organization.

The early Nazi movement had the luxury of having an agenda that was largely unknown to the general public. They could show as much or as little of this agenda as they wished. Antisemitism was everywhere throughout Europe (and in the USA) and the Nazis weren't very concerned that their antisemitic ideas would turn people off, so they didn't have to practice much subtlety in that department.

Hitler had a keen eye for distancing himself from scandal. Yet he participated in several early events that had the ability to unseat him as the leader if these things became public. He learned his lesson and stayed away from getting his hands dirty after his incarceration.

Modern Nazis would be a mystery to the old guard if they were to meet. Modern Nazis are undisciplined and impulsive. This is the antithesis of the early Nazi movement. Also, modern Nazis have the baggage of history, so they need to be subtle.