After the first ten yeses
Now the page becomes the running note. If the drink list changes, or the arrival window shifts by fifteen minutes, you revise one line and everyone reading after that gets the corrected evening. Nothing arrives as a message a guest has to search for on a Friday afternoon.
If you are running the night with someone else, they can work on the same page rather than asking you for screenshots, since collaborators can be added with their own level of access. And the names that never answer show as a gap rather than a vague worry: reminders go out to non-responders from the list itself, which is less personal and more reliable than you typing the nudge.