The purpose is censorship resistance and everything else flows from this.

Examples are client agnostic use of the protocol leading to client competition. You have data and follower ownership, so you can’t be cut off from your audience. Limitless applications- if you are a dev with a vision, you can build without permission an app on top of the protocol

it depends on the person, but censorship resistance doesn't resonate with almost no one

here's my answer:

no, it's not about the privacy of it

you know how often when you use twitter or facebook you leave the thing outraged, or triggered in some way? that's because they have some of the smartest developers working to try to make it as addictive as possible, and the more you are triggered, or disgusted, out outraged, the more money the make off of you

nostr is a protocol where that simply CANNOT happen, which translates into people being much nicer, the place being much much more friendly, honest, and human

and yeah, it has a bunch of other niceties like the fact that no one manipulates you, no one is selling your attention, etc