The brownshirts of the covid-19 pandemic and usually severely infected with little hitler syndrome. Not only do they aggressively and condescendingly enforce compliance with mask mandates (even against their neighbors), but ensure that others are wearing an approved mask and that it is worn they way they want. Some are also known to use their contacts, or position in the media to make anti maskers look like the followers of Satan (even though they are not) and if all that wasn't bad enough they want everyone to wear masks forever and throw a tantrum everytime someone proposes lifting any mask mandate.

Is also a slightly less cutting way of calling someone a mask nazi