No need to quote you, but GvR himself [0]. That's the Faster CPython initiative, which has been ongoing for about 2 or 3 years I think. 3.11 got some nice speedups from it, and 3.12 is on its way to get more. [1]
[0] https://github.com/faster-cpython/ideas/blob/main/FasterCPyt...
Guido himself is involved in the faster-cpython project though (which is responsible for these performance improvements).
It is happening: https://github.com/faster-cpython/ideas
The majority of the improvements come from the Faster-CPython (https://github.com/faster-cpython/ideas) project, sponsored by Microsoft (Thanks!!)
There you go: https://github.com/faster-cpython/ideas
I thought of this idea as well, but don’t think this is really the right approach.
Many of these issues relate to specific features which developers subsequently avoid using.
I think these types of initiatives should be more broadly targeted and probably curated by the maintainers/users of the software. E.g. the faster-cpython project is focusing on improving general Python interpreter performance: https://github.com/faster-cpython/ideas