Firstly, that is _not_ what reductio ad Hitlerum means.
More importantly, it's not a fallacy. It's pretty well documented by now that what you get when you have a social network with very little moderation is, almost inevitably, a social network for Nazis:
Just because people like bringing up Nazis a little too often doesn't mean every reference to Nazis is fallacious. Sometimes, it really is about [neo-]Nazis.
More importantly, it's not a fallacy. It's pretty well documented by now that what you get when you have a social network with very little moderation is, almost inevitably, a social network for Nazis:
https://www.newsweek.com/nazis-free-speech-hate-crime-jews-s...
https://nymag.com/intelligencer/2017/05/voat-the-alt-right-r...
https://thehill.com/policy/technology/456415-founder-i-wish-...
Just because people like bringing up Nazis a little too often doesn't mean every reference to Nazis is fallacious. Sometimes, it really is about [neo-]Nazis.