This is a very valid concern, and we keep it in mind. Several really fancy ideas were rejected simply because that added too much complexity or could get out of

This is a very valid concern, and we keep it in mind. Several really fancy ideas were rejected simply because that added too much complexity or could get out of hand quickly. That's why, for one, the main page of the project says that "Scala macros ... cannot change syntax of Scala". Some people from our team do have a painful experience with Lisp-style macros, so we try especially hard to find a minimally useful yet conceptually clean approach to compile-time metaprogramming (we are sure, though, that this sweet spot exists). And that's why we stress the importance of feedback and appreciate it. Thanks for sharing your thoughts!