It did later come out that Tom Lord wrote it, but not as a prank; he was working with RMS to build Guile, and this was the opening salvo in trying to build the case for it. RMS did post it under his own name.

Well, fake money is well done when it looks as good as the original :)

Just for saying I did not invent the lisp/scheme obsession directly from his web page[1] :

The most powerful programming language is Lisp. If you don't know Lisp (or its variant, Scheme), you don't know what it means for a programming language to be powerful and elegant. Once you learn Lisp, you will see what is lacking in most other languages.

[1] https://stallman.org/stallman-computing.html