It's more fraught when there is only one (or a few) platform(s) to build on, and the platform makers are completing with all the layers above as well. One might

It's more fraught when there is only one (or a few) platform(s) to build on, and the platform makers are completing with all the layers above as well. One might even call it a violating the public trust. (Since the public may otherwise not be able to resist an oligopoly that owns the means of production.) For makers above the platform layer, it's like trying to build on sand -- or the sarlacc monster slowly digesting everything above it.