I want a language that has one and only one obvious way to do things. That doesn't require building my own language features or choosing an addon that might or might not be compatible with others.
I don't have any use for the flexibility to customize a language because I want a language that doesn't need to be customized.
If I was doing cutting edge AI i might feel differently, but I'm not. The stuff I do has only one place for creativity and that's the UI. The code should be boring and utterly forgettable. If someone remembers your code, it's probably because they had to spend time looking at it when they could have been writing unit tests or moving on to new features.