[tehwebguy]

> Speculating here, but probably data collection, usage tracking.

Apple gets all of that data whether they require your password again or not.

> App makers probably want to send you updates/emails on why you should buy the pro version of the app etc, but I think your question might have be rhetorical.

App makers don't get any of that data from Apple, they have to request it on their own if they want it.