> Because that's what a good neighbor does with upstream…

I’m jumping in here but I really don’t understand this perspective. The license doesn’t say that downstream must be a good neighbor. In fact it explicitly avoids any restrictions on how downstream code is used. If you’re not happy with that then the GPL is not the right license. Holding others up to an unwritten standard (which is inherently not enforceable) is a recipe for disappointment.

> is a recipe for disappointment.

True, but like in a working society, many things are being done even if not explicitly requested by some regulation because it's obvious that they help improving the society for everyone. For me it's pretty automatic, I have money for or coming in thanks to my project? The first thing I will do is giving back to the dependencies that made my project possible, I don't even need to think about it too hard.

And let me add also this, upstream decided that for whatever reason they don't want code generated by AI? It's their project, they are free to decide to follow this route, who cares. Pretty pathetic to whine about it on X, though.