I'm confused about what kind of data you want to protect. If you mean your posts and comments, they are already publicly availible on the Internet. Meta doesn't need to make a activitypub app that gets federated with Lemmy (or kbin) to aggregate and sell this data.
Is there an other kind of data that is visible only to server administrators?
Can't they aggregate and sell your Lemmy activity data without federating with your sever? It's all in the public Internet.
I guess it won't be that useful if they have no way of tracking you. But, I don't think federation makes it easier to track users. Do sever admins get ip addresses of every user on a server they federate with?
Do you think blood donors are more or less likely to be exposed to COVID?
I wish drive thrus would just go away entirely. Theyre bad for cities.
Why not kbin?
I can't figure out where to find this setting. Is it in jeroba?
How do you define "largest cities?" I get around fine without a car in a city with a population under 200k.
It depends where the motorists are used to driving with bikes, and how fast they're going.