[vially]

> X works perfectly for me, and there is nothing I would want it to do that it doesn't do now. Why should it change?

I'm not sure whether a program that works for you is a good indication that it no longer needs to change.

> When we have a software that works well and solves our problems, we should celebrate it, not complain it doesn't find new problems to solve.

I think anyone can agree that, at the very least, screen tearing and proper support for mixed DPI setups are problems that fall squarely in the responsibilities of X and yet it still didn't manage to solve them after so many years.

So it's hardly the case that X is just so good that users nowadays have to try really hard to find new problems for it to solve.