This stuff lives in old water heaters right? It could've happened any time, but if you're using a neti pot you probably have a cold and are already susceptible to infection.
It's predictable that Internet companies stop being benevolent when their growth has ended, everyone will move elsewhere and it'll happen again in a few years.
Mozilla lost because they sat on their butts for 10 years under Eich and lost their technical advantage. Firefox got sandbox and multi-process features in 2016 that IE8 had in 2009, they were happy to crash and lose every Pwn2Own before that. Being semi-nonprofit they can't secure any talent so they fake being like Google by blowing money on social activism and rebranding when they're not siphoning it to buy each other's start-ups.