The funny thing is that if the people who worked on spam at Google were free to talk about it, I'm sure it would become evident that they know more about spam and anti-spam efforts than anybody else in existence. It's a ridiculously hard problem, especially when people are targeting you directly. But they aren't free to talk about it, because if they did it would just give more assistance to the spammers, and make th…
Also, i'd be very surprised if they didn't have tens of thousands of workers aiding in spam review already. The hard part in all of this isn't finding and stopping spam - it's defining what spam is. Are all the pie recipes where there's a 2000 word essay about their grandma at the top 'spam'? They still have the recipe, and Google Home devices pick up the recipe instructions just fine so people end up not reading it,…
I think this isn't entirely related, but that's perhaps the beginning of a bias you might end up having that everyone experiences technology in the same way as it marches on. I've yet to encounter a Google Home in the wild, I imagine far more people are consuming recipes on phones, tablets and PCs.