I would be one of your 10%. I have been using Lisp languages since the late 1970s and Common Lisp since about 1982 so I think it is just familiarity.
Another reason could be developers who like to compose programs from the bottom up would naturally like repl based development, but there are many languages with great repl experiences.
Another reason could be developers who like to compose programs from the bottom up would naturally like repl based development, but there are many languages with great repl experiences.