If I'm using Meetter to automatically schedule a stand-up, I (presumably) can say, only schedule the meeting if we have blockers to discuss, and only invite the people who are mentioned in the issue/blocker. But how to determine if there's blockers, and who to invite? Query the issue tracker.
You could look up blocked GitHub or ZenHub Issues and generate a stand-up to discuss them once they happen, and maybe re-generate a stand-up after X time if they have not been updated, to prevent stale blockers.
What I get out of this is when I work for a company which requires stand-ups, I don't have to go to them if I have no blockers. I know I would pay for that privilege :-)