I don't agree at all. On a small project that utilizes a single DSL or a single library, sure, the difference is negligible. On a large project with many DSLs

I don't agree at all. On a small project that utilizes a single DSL or a single library, sure, the difference is negligible. On a large project with many DSLs and/or libraries (ie Rails) it's not easy to tell if a given thing is part of Ruby or part of the many-headed beast that is Rails. (or which of those heads provided it...)