[ThrustVectoring]

That'd also be a valuable-ish service - have someone with bad reviews apply very early to competitor's places during big events, for the sole purpose of getting denied and preventing actual costumers from renting from places that aren't yours.

[mvid]

It would only be valuable while unknown, as soon as it was known by a large enough crowd it would cause a viral reaction blowing out all availability for some big event.

[ryuker16]

Denying pre approval is easy and no damage to your rep.