@Crumbly Writer
You'll need to ask Lazeez himself. He's stated several times that he has no plans to include other languages, but he's always open to new ideas.
I wouldn't mix languages. So no posting anything other than English on SOL.
If I support a language, the site will be in that language, interface and contents.
I can't run a site in a language that I don't understand. I need to know what people are posting. Online translations tools are cool and good, but it gets tedious if I have to rely on tools to translate things simply to run the site.
I can read and write French, so that's on the docket sometime in the future. SOL's engine has the structure to be multi-lingual, but needs that infrastructure implemented in too many scripts that don't have it. So extensive modifications to the code are needed.
Hopefully, I could afford to hire a developer at some point and get them cracking at building the huge amounts of code needed for everything I have on my to-do list.
For now, my focus is on a new multi-site unified payment system to be able to build a site I've been asked if I could build to help authors out.