For the sake of argument, I'll say it is Priums' fault. He misunderstood and swapped servers on accident. Does it matter? "The customer is always right" is a common business saying for a reason. If he misunderstood how the system was going down, that is SE's problem.

I've worked customer server and tech support. The customer not understanding how a product or system work is your company's problem. If you do not, as a company, want to make sure the customer is happy with your system, the customer goes somewhere else; your competitor gets your business. Primus could be at 100% fault, still SE's problem. He plays this game for social interaction and to enjoy a SE product. Refusing to help a paying customer, even when it is their fault, to achieve this product's end goals is a fantastic way to lose business. There is a reason every company has customer service phone line, tech support, ect. There is a reason a restaurant will send you free food coupons if you call corporate with an issue.

I'll use myself as an example, I no longer a auto repair chain because of bad customer and tell everyone to not to go them. This was a chain I used for a few years, but one horrible customer service incident and I use their competitor now.

Honestly, not handling this issue with honest to god seriousness is just bad company customer service.