I think scripting is less popular because (afaik) it would probably be harder to do than modding (which is why modding is more popular).

And a suggestion, there is a mod section where people upload mods, why not have a script section, add the top scripters to the supervisors of the board like Blam and Dafe, whoever else is good at it I don't really know. It could only help.

On a side note, I usually try out most of the scripts that Blam and Dafe make, some like the airplane one don't really appeal to me. I will try it though, I never saw it until now.