"masks are completely useless"
That is entirely false and you are posting damaging unscientific misinformation that harms people.
https://www.sciencedaily.com/releases/2019/09/190903134732.h...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2440799/
Nice you could create a brand new just created account just to shitpost though, thanks for such effort to harm people. Why not post using your real HN account instead?