[ezfe]

The API limits how frequently (3/year) *and* can be fully blocked by any user for all apps.

They do get banned, effectively.

[spacedcowboy]

And there is nothing to stop a developer putting up their own nag screen as many times as they like, only pushing through to the real one when they get a good response... And they do.

[ezfe]

If the OP did that then they deserve a 1 star rating. If they used Apple's system then they deserve a rating that doesn't deduct for the popup (and evidence seems to show that's what happens)