Apple gets $20B a year from Google to be the default search. When your data is harvested, they get paid - they just aren't the ones doing it.

Everywhere is a good place to talk about those things, this is a receptive place.

To avoid impersonation, you can use your website as your handle. You just add a file to your website and then your handle can be just @ pizzacakecomics. com. Then it's clear this is your real account. You can change it on this account without having to make a new one.