Re: A proposal for the future of open-paren-in-column-0-is-defun-start.

[Stefan Monnier]

> With this mechanism in place, o-p-i-c-0-i-d-s could safely be left
> enabled, for speed's sake,

FWIW setting `comment-use-syntax-ppss` to nil is likely make things
*slower* in many cases.

This "newish" variable was only introduced so as to have an escape hatch
if it turned out that the new functionality of relying on syntax-ppss
proved problematic.

Given that I haven't seen a single incident reported since that fateful
Dec 12 2017 night, I think we'd be better off removing
`comment-use-syntax-ppss` altogether.


        Stefan