Wikipedia is unvetted crap......
There is no need to use the word "unvetted".
Unvetted just means that information is not checked or reviewed by anyone prior to it being posted. This appears to describe Wikipedia accurately.
I think the "days after fruit set" argument would definitely change with different climates/conditions.
I look at it at an evolutionary level. Pods develop their heat before ripening as a defence mechanism against animals which prefer sweet ripe pods
translate from he.wikipedia.org:
"Capsaicin is an oily organic compound, commonly used as a means of protection against eating certain fruits before ripening (maturing)"
so peppers are hotter before ripening/maturing?