I started to use it when I used VTK in the early 2000; I closely followed all of its lifecycles, including all pipe dreams; and thank you so much for teaching me about build systems.
Irrelevant. The whole point is that cmake 3.0, which was released in 2014, is an entirely different beast. See "modern cmake".
It makes no sense at all to argue thing about stuff just because you used something two decades ago. Totally irrational.