Oops. You're right. Though it sounds like that historically/ethnically it might have been once. :-)

Various. Eg https://oldieoutdoors.com/2018/03/28/shropshire-going-on-a-berry-hunt/ or
https://en.wikipedia.org/wiki/Long_Mynd

Re your final comment: you should try reading the tag definition for natural=peak.

The difficulty of the existing boundary is that it means that roads such as Curlew Croft are not recorded as Leighton Buzzard but Billington, which doesn't make any sense.

Done. Thanks for the tip.