I can’t really think of a reason for that as Reddit is hated somewhat equally by “both” sides of the spectrum. It’s just something I find interesting.
If you’re worried people will think you’re a Nazi, maybe it’s not the other people you should be worried about.
What if you just have no idea of what my views are and I hate Nazis probably as much if not more as you do?
Then I’m happy to be wrong (fewer Nazi sympathizers is always better), and you have nothing to worry about. But that you consider a potentially over-broad definition of Nazism a major problem in this political climate suggests that even if you are antifascist, your priorities are skewed.