Author here. I have written this language for many reasons but I won't detail here, I'll just say it's a lot of fun for me to design a language and write a compiler.

This language is a playground where I constantly add and remove features or try various experiments, so I have no intention to promote it. The only reason I have published it is that I publish an open source text editor written with this language.

After twenty years of evolution, it starts to become stable but not yet, I had recently added some basic option types.

It is a personal project, which the author uses for some other personal projects.

Clade - a programming editor with elastic tabstobs and Smalltalk like navigation

Maybe, there is more. Looks to me like an illustration of the "It is a quiet life" meme