I'm an F# developer, so I'm usually psyched to see F# articles on Hacker News. In this case, though, I can't even tell what this is supposed to be or why I should care.
2. Because F# is fun? An hour or two of work, get something useful done, go do other things. Would you rather spend month-after-month hip-deep in some library or framework or simply solve a problem and move on? I'll take the quick, useful, fun version, please.