[_delirium]

I'm not entirely sure about that. While Stallman is most famous for his license preferences, he has a longstanding, pretty strong pro-Lisp preference as well, dating back to his early work on Emacs Lisp. Guile Scheme was created as the official GNU extension language mostly because Stallman thought a version of Lisp was the right language for a standard GNU extension language, and Tom Lord convinced him that Scheme was the right version of Lisp for the job. It wasn't a preexisting GPL'd interpreter that he just picked because of its license.

[sigzero]

I was only talking to the point of Stallman dissing Tcl. Would Guile still have happened? Maybe, and for the reasons you outlined.