"Since someone screwed me, they should screw you"? Crab bucket mentality?

No one is screwing anyone. I also learned from reading GitHub code and continue to do so. I haven't "screwed" the original code authors by forming an abstract memory of their code.

Any country that tries to forbid this will be torpedoing their economic competitiveness against countries that allow it.

This is a common fallacious argument.

What is "this" ?

> Is that preferable?

I don’t see why you are asking this. Which part of my comment made you think it is preferable?

It might also be wrong, yes. I have plenty of code licensed under very permissive licenses that still requires attribution. It is an open question of how much the AI system is a "derived" work in a specific, technical sense. And it probably will remain hard, since the answer is probably on a continuum.