Casemates backouts?

Zortapa thought this was worth mentioning said

So, what does the group think about people who offer to share a case and then back out after the order has been placed?

Perhaps some of the blame can be directed at this website since it does not send notifications to people when others respond to their posts or whispers. Without improved functionality, I’m afraid that I will not consider being a “casemate” on any other offerings so I don’t get screwed again.