I have definitely noticed and been frustrated by what you're calling out here. There always has to be something to work on, even if that thing might invalidate a significant amount of previous effort or cause regression. As a developer myself, I guess it is good for me, because it means job security. And maybe that's why there's always something to be added or changed or re-created on the products I've helped develop - to ensure all the individual contributors have something to keep them busy. But it definitely is frustrating that it seems like an app being called "done" is extremely rare nowadays. Though I suppose developers didn't really have the choice to continue development indefinitely back before the internet allowed "miscellaneous bug fixes and feature updates" patches to be pushed weekly.

Edit: I just noticed who I was replying to. Thanks for your work on Cydia and in the iOS jailbraking scene at large. I have lots of fond memories jailbraking and installing all kinds of weird tweaks on my iPhone 4 back in the day.