[toomuchblah]

I thought a single reference to the 'usual' problems developers can face building on someone's API would be enough by now.

[ableal]

For those tuning in now, the "usual" is probably best synthesized in Tim Bray's 'sharecroppers' piece of ten years ago: https://www.tbray.org/ongoing/When/200x/2003/07/12/WebsThePl...