Definitely not something I would want, and it’s been raised here countless times in the past.
The issue with insisting that people contact you first, is that you’re trying to make Fiverr work the way you want it to, rather than the way it’s designed to. Fiverr is supposed to allow people to employ a ‘menu card’ method of hiring a freelancer. Everything is neatly laid out with prices, and if you’re feeling confident enough to place an order because you know what you want, then go ahead.
Employing an authorisation process puts a barrier between us and the customers who want to order from us, and that’s not something I want to see. Many of our customers contact us first, but lots of our customers also use Fiverr because they prefer not speaking to someone, and simply placing their order, knowing it will be delivered without them having to engage with anyone. Our income would take a massive dent if Fiverr employed what you’re talking about.
I do agree that cancellations that aren’t your fault are annoying. I’d prefer to see Fiverr address this, perhaps by allowing a bit more leniency when it’s clear that the cancellation is due to buyer fault, and not seller fault. We had a customer just last week place an order, then admit that they weren’t actually ready as they didn’t have the script, and immediately cancel. It sucks, but still not enough to make me want what you’re suggesting.