Why not? Elisp is not amazing but having a DSL and powerful metaprogramming lets you script things so much easier than a lot of languages. Viml is atrocious. There are some libraries tha use the metaprogramming to make it easier to program in as well. Vim is a good idea and makes editing text nice to use. Emacs is a good idea that everything is customizable and has a good level of abstraction to make things happen. Using evil inside Emacs makes a great editor. Spacemacs makes Emacs easier to use too with the mnemonic and ergonomic bindings and a mostly good ootb experience for how young it is.
