A listing tier affects ordering and placement. No tier allows editorial content to be changed, the “needs verification” label to be removed, the review queue to be skipped, or unfavourable information to be hidden. The ranking function reads only the tier and the start date — it never reads payment status.
Once an event is live, organisers cannot edit it directly. Every change creates a new queue record for an editor to re-review — this is what keeps the publicly shown “last verified” date meaningful. Review is committed to within 24 working hours.