A waitlist is a promise, not a parking lot

A waitlist that never releases anyone teaches people to ignore your next one. The mechanics are easy; the communication is what decides whether the seats actually get filled.

Say what position means

“You are number 34” is only useful if people know how many seats typically free up. Pairing position with history — “we released 40 seats last year” — turns an abstract number into a reasonable expectation.

Give the release a deadline

An offer that sits open indefinitely will be answered last. A release window of 24 hours, stated up front, moves acceptance into the same day and lets the next person be offered a seat while the event still matters to them.

Close the loop with the people who did not get in

The people who waited and did not get a seat are the most qualified audience for your next event. An honest message at the end — the event is full, here is what is next — costs nothing and keeps the list warm.