$20k annually is below poverty line. I'm sure Google would love to be able to get people to solve their moderation problem for so little money they can't actually afford to both eat and pay rent, but if we're making hypotheticals here, we should at last hypothesize 126,000 people who get to live like real human beings.

I'm sorry, i actually had £20k, and just changed it to $ without converting; £20k is about what a 'Accounts Administrator' earns (https://uk.jobted.com/salary). So that's about $28k which is about 3.5 billion, or about 18% of their 2020 profits. Still very reasonable, most businesses have to put more than half their turnover into wages..

The other thing I'd say is that this isn't low-skill work. If you get thousands of people, train them for a couple days, pay poverty wages and tell them to make each decision in less than 30 seconds, you're not going to get good results.