Using Gaben to mean Valve is a joke, I'm not seriously saying that Valve consists of one guy and that all their profits go to his cupcakes.
Why should the middleman not be respected when the middle man is an important part of it? You didn't buy it straight from the developer, and thus the middleman has the right to get paid for his work. Valve isn't just gabe sitting on a huge pile of money - while no doubt he's rich enough to do so, he also runs a company of many employees. Valave does incur costs in letting you use that game; the costs of storing, amending, and backing up your account; transferring the data to your computer whenever you download said game. All those have costs.
The game isn't available outside of Steam (as is the case with many other games in recent years), so the only way to get and play it is to use Steam (or piracy). This is one of the major reasons why dependencies on distributors is bad, and Valve is getting a larger and larger share of the market just by attaining a large enough size that developers must put their games on it to succeed. If I don't like Steam and would rather the developers get the money, what is so strange about not wanting to buy it through them, or not caring if they take a loss? You're trying to find honor in an honorless system, like it's the duty of the consumer to respect middleman as anything more than necessary. There are a dozen other sharks that'd pick up Valve's slack if they went under, and happily take up their share of the market. The ideal is
always to get it directly, and on the internet the only thing in the way of that is bandwidth and accessibility, unlike for physical goods.
I disagree with you; he has a moral obligation to file the ticket, and so not filing the ticket is not acceptable morally, whether or not he had a legal obligation to do so.
Personally, I'd say morality in consumerism is irrelevant. But I think strong arguments can be made either way, and since the ticket is likely irrelevant, either action is fine. I'd rather not continue this argument, as nobody is going to be persuaded of anything.