Even 100k salary is like 130k with benefits and taxes, so 200 developers takes out 26 million, above the subscription revenue without counting for any overhead like infrastructure, ops and administration. And below 100k, I think you will struggle to hire enough with the skills you need, browser dev is hairy and hard, and you are competing against an extremely well funded project in Chrome.

I don't doubt there are developers being paid peanuts with more talent than I will ever see, but I haven't seen them and I know a lot of people spending a lot of money looking, which suggests to me they are rare and hard to build a team out of.

And if they found them, and they fired all the senior bay area folks and rehired these 100k developers tomorrow, are those developers experienced writing fault tolerant c++ in a multi-decade codebase? And if so, how many will relocate or take remote jobs for way higher salaries after a couple years? Google, Amazon and Microsoft would be happy to have them and pay 300k+ TC for those skills, as well as countless banks and fintech firms.