bug#50895: [External] : bug#50895: 28.0.50; show-paren-mode is distracting in some modes

[Drew Adams]

> I think defaulting show-paren-mode to "on" is a good
> change in general, but it's distracting in some modes.

Sounds like a user opinion.  Users can turn it
on or off wherever they like.

If you turn it off automatically in some modes
for everyone, then you break the behavior for
users who have customized to turn it on (globally).

Why do that?

If you think now that it should be on globally
by default, then change it to on.  That will
break the default behavior for users who've
enjoyed it being off globally by default.

But if you change the default globally to on,
AND you change it to off in some modes where
you happen to think it's distracting, then you
oblige both users who enjoyed it off by default
(globally) AND users who (by customizing)
enjoyed it being on globally to customize Emacs
to adjust to your change.

Remember that `show-paren-mode' is not just
about flashing things.  It's also (and mostly)
about just highlighting parens.