Readit Newssohkamyung commented on RFC 9839 Unicode Character Repertoire Subsets rfc-editor.org/rfc/rfc983... · Posted by u/sohkamyung
From the Introduction:
"The intended use is to serve as a convenient target for cross-reference from other specifications whose authors wish to exclude problematic [Unicode] code points from the data format or protocol being specified."
Albeit ime this is something even kids do, not sure why it is "new"?
Edit: I may be referring to the Sidek serve it was based on
From reddit (also not 100% sure):
The sidek serve is an other technique and has been banned for some decades (not 100% sure, but the spinning effect was caused by hitting the feathers first , I think), whereas the new spinning serve resulted from spinning the shuttle with the fingers before hitting the cork.
https://old.reddit.com/r/badminton/comments/1e18zys/comment/...
The Sidek family was a dominant badminton force for Malaysia during that period. [1]
[1] https://en.wikipedia.org/wiki/Sidek_brothers