Earlier quoted context omitted.
It seems like Rebble (the board) really overplayed their hand. From what they posted, it seems like they wanted more control over what Core was doing, deciding that the best way to do that was to try and hold the app store data hostage. Now, with the Core app open sourced and multiple app store repos supported, Rebble's position will likely be greatly diminished from what it could have been if they had been satisfied…
I spent some time on their Discord chatting and trying to nudge them towards a healthier approach. Many of them seem to think that PebbleOS was released just for them (they quote the Google press release), and so reading between the lines I really do think they feel at some level that code has been "stolen" from them. Which is ridiculous (and I said so) but if they think it's true then it explains their actions much…
If only! They trashed their reputation by lashing out at their own misapprehensions.