alt Hacker NewsFair enough. I assumed you had Covid in mind with an anti-mask reference. At least in modern history in the US, we have only even considered masks during the Covid response.
I may be out of touch, but I haven't heard about masks for measles, though it does spread through aerosol droplets so that would be a reasonable recommendation.
I think you're right - outside of COVID, it's not fringe, it's an accepted norm.
Personally I at least wish sick people would mask up on planes! Much more efficient than everyone else masking up or risking exposure.