[sagichmal]

> Plugins and scripting languages flourish when they democratize the process of adding features to a piece of code . . . In the best addon ecosystems, the core maintainers put some safety rails on the system so the addons can't do anything too crazy. Then they watch the cream of the crop and start trying to include them in the base functionality (limiting the number of optional features the majority of their users have to manually pick).

Well, it's a cost/benefit judgment call, not a single valuation. And I think for situations like this, if you have to pick a side, it's generally better to pick the exclusionary walled garden over the bazaar -- I think the value of democratization is usually overstated, and the drawbacks underemphasized.