> The added features are just user experience features.

> It's because they do things that is why they score differently.

That was my point. Regardless of how you feel about UX, it's a value added set of features. The question initially posited, stands. Why would a company do any of these things?

> Coding hardness add features for user experience not for agent efficiency.

Pretending it was always about some metric you just decided was important is moving the goalpost. It's not compelling.

I think it makes more sense that it's Freemium Dominance or they act as Low-Cost Marketing tools.