Comment by grahamj

Installing and booting Linux absolutely implies consent to let it do what it does. It's open source, you can evaluate what it does before booting it. You know it's comprised of many processes, you know it has a networking stack, you connected it to a network. You can't then ask OMG why didn't it ask before sending something?

I agree that all-or-nothing is problematic but even with a flexible permission system the best you can hope for is for all the things apps do to be itemized and set to sane defaults. But even then sanity is subjective. For every person like you (and me fwiw) who values privacy there are 1000 people who will never find the settings, don't care about privacy, and will wonder why stuff isn't working.

Ultimately privacy is similar to security in that it comes down to trust. If you don't trust your OS you're screwed. Your choices are try to exert as much control over it as possible, or don't use it.