I like OpenBSD. But, Python is not OpenBSD, it has a different set of core values. Pragmatism being high up that list. It is written by and for pragmatic programmers. Not purists, not idealists.

It is stupid to violate core values.

It doesn't actually move backward in any meaningful way, it just makes the parser ignore a (now) extraneous character.

It'll help porting which will get momentum moving behind v3.

These Python programmers could potentially run circles in smartness around you or Theo. Or not. But it has nothing to do with the back-porting under discussion.

Not desiring to undertake a big code changing effort != stupidity.

Especially when you aren't even paid to do it.

Actually, considering that you would then have a patched mess of a codebase, or have to support to codebases for users of older Python versions, it's actually the smart thing to do.

And it's not like OpenBSD ever got anywhere --if you insist of using it as an example that "not moving backwards ever" is a plus. What's its adoption percentage again?