An entry cannot ask a question
A calendar has one state: something is on it, or it is not. A shared home has at least three, because somebody has asked, somebody has agreed, or somebody has been turned down. A proposal written onto the calendar looks settled, and a proposal written anywhere else is invisible.
So families invent conventions to carry the difference. Square brackets mean pending, capitals mean confirmed, a question mark on the end means asking. The convention lives with whoever invented it, and the first person who missed the message books over somebody's holiday.
In Mooring a request is a different kind of thing from a booking and stays one until a person answers it. The calendar fills only when somebody has said yes, and everybody can tell at a glance which weeks are settled and which are still a question.
It cannot say who asked first
When two households want the same week, that is the question that settles it. A calendar entry carries a created-at time somewhere in its history, but nobody can see it, and an entry that was edited looks identical to one that was not.
The fix is unglamorous and complete. In Mooring the request is dated, the decision is dated, and both are visible to the person who asked and the person who answered.
The house information is not where the guest is
The wifi password, the bin day, the key safe code, the trick with the back door. All of it is in a message somebody sent in 2023, a calendar entry has nowhere to put it, and so it gets asked again every stay, of the one person who is already the calendar.
It belongs to the house rather than to a person, and it should arrive with the stay. Mooring keeps a guest handbook on the home, on every plan, and it unlocks when a stay is confirmed, so a door code is only ever readable by somebody who has actually been invited in.