I wouldn’t call going from mad profits to okay profits a sign of downfall. Having decentralized technology doesn’t mean decentralization will actually happen. For instance look at E-mail. It is technically a decentralized service, but most people still uses services provided by big tech vs operating their own servers. Such a system does give you more choices, but don’t expect this future will be without big tech.

Then you need both anonymity and privacy. Sometimes you do need both but they’re not the same concept.

Privacy without anonymity is you using the bathroom with everyone seeing you walking in. They know you used the bathroom but have no idea what you did inside.

Anonymity without privacy is like you pissing on the street with a ski mask on. Everyone saw what you did but no one knows who you are.

Having both is walking into the bathroom with a ski mask on. No one knows who you are nor what you did inside.