So we need an easy toggle, and option to do this via email reply.. and option to change notifications from each message into twice per day or once an hour or other options.. I think that would satisfy most people.

I hated emails from fbk and turned them all off long ago, but some people seem to like that kind of thing, so we might need options, and options for those who want a reminder but not a bunch of reminders everyday.

I'm impressed you were able to accomplish some specific thing you wanted to do using the FB settings.

funny thing about that, some time ago I tried to figure out how to stop all messages from fbook to my email, after menu hopping for some time, I allowed my gf to go into the settings and turn it all off and turn on many privacy settings. I know fbook has changed the privacy things several times since then, but I don't use it enough to have any issues I think.. I also don't use messenger app or fbook mobile, so I've gotten lucky (and helped) to get zero messages from them for years.