There are 1000 ruby developers that Microsoft choose to not ignore but learn from while procuring super powerful scripting languages like F#.
Truth be told, F# does a lot of what any scripting langauge can do, very very well for that matter, hence the hammer, coffin
I don't understand the relationship here. F# is a strongly-typed hybrid (functional and imperative) language that is a thin skin around CLI. It is not a dynamically typed language and therefore is not the right tool when you need/want dynamic capabilities
(like Python and Ruby afford...). Dynamic languages are dynamic at the type system level. F# targets a static type system, which is baked into the CLR (this is why the DLR was invented...).