> If I write something down on a piece of paper

At some point I think these sorts of analogies break down, as the setup becomes too foreign to what we're more concretely used to.

In this case: there is no pen or paper which can store what you write on a replicated set of servers across the world, with an accompanying ToS telling you how that will be treated/used.

Although I have little sympathy for this women (both her intent and stupidity), I do agree this is a dangerous thing.