Core doesn not have any rights to it. Pebble did, and Pebble threw it away.

Rebble honors copyright by taking anything down that a rightsholder says to.

That's all copyright grants, and they are doing it. If you own an app and don't want Rebble to redistribute it, they won't.

Core has no claim to anything.

This is CoreTube coming along years later "Hey I used to work for Youtube. Give me your copy of all those videos other people actaully made and own, that Youtube threw away years ago. Also give me your whole NewTube back end site you wrote from scratch because I want to make CoreTube now and I don't have my old Youtube stuff any more because I sold it."

Like holy fucking are you kidding me?

You keep repeating that Core has no rights to that data, which is true, but it's a refutation to an argument no-one in this thread has made. What we're saying is that Rebble has no rights to that data either.

Rebble's theft of that data was 'allowed' in the same way that Nickelback allow those "look at this graph" memes (https://www.youtube.com/watch?v=a7aqZyRuP1Q): it's copyright infringement but they don't care so they don't enforce their rights. It's not like trademarks with its use-it-or-lose-it clause. What I'm claiming here is that people who made apps and watch faces for Pebble didn't care (assuming they knew at all) because it was for preservation purposes.

But now that Rebble is hoarding it to themselves, to the exclusion of Core, a revived Pebble company, those copyright holders may become less willing to tolerate the copyright infringement. And let's be clear: their rights do not begin and end with just getting it taken down.