Facebook already spies on its competitors: https://www.eff.org/deeplinks/2019/01/what-we-should-learn-facebook-research https://www.eff.org/deeplinks/2019/01/wh

Facebook already spies on its competitors: https://www.eff.org/deeplinks/2019/01/what-we-should-learn-facebook-research https://www.eff.org/deeplinks/2019/01/what-we-should-learn-f... It's not so much a slippery slope as it is the bottom of a valley, and Facebook is enthusiastically digging deeper.