Dude you commited 167,147 lines of code in 1529 files in a single initial commit, then have not made any coding changes...

Is this slop?

Why would I use this rather than, say, Clojure?

This is all done in PHP. Actually impressive. It's a bit of an unusual choice for this kind of thing. Also with help of an Ai, because everything is nowadays. The README didn't answer my question, why someone would want to learn and use Moggi. It just explains what it is (which is fine I guess), but not its purpose or why this was created. Don't get me wrong, I'm not against this project, just want to understand the motivation.

That's a featurelist

Well it looks 99% like Haskell, but compiles to JVM, .NET, and PHP. And otherwise seems very "Haskell at home", with moogle (instead of hoogle), and mogdoc (instead of haddock).

Not to diminish any work you did do, but I do think a Haskell -> JVM/.NET/PHP compiler might have done what you aimed for and easier.

Why target 3 different runtimes?