I haven't read too far into those, but if one has an integration or feature to automatically send a message to the team's Slack channel with a link to every new Local SO post, it could really light the fire on that new system. Then all the replies would be easier to capture on the SO post, AND eyes would be on the new posts, AND it wouldn't be cluttering inboxes.
I’m in the process of identifying communication gaps in my org and possible tooling and process solutions. Stack Overflow for Teams is high on my list of tools to evaluate and it feels like a Slack integration would be important so your comment finally prompted me to look into it.