Also, you should really stop standing up for giant corporations. Sony doesn't need your help.

Yeah... That's not what I'm doing. I'm just trying to explain to people why their demand of a refund just is not going to happen. It's not a defence of the actions. It's a response to people expecting something unreasonable.

Sure, it's a material change to the product. If you buy a smart device and they stop support, do you expect a refund? That's not how this works ever. It's not going to happen. Maybe people living in regions that don't have PSN support will, but not everyone else. I don't have a PSN account even, and I won't be making one no matter what. I recognize that there's no way Sony or Valve are going to take a tens of millions (probably) dollar loss.

Besides, one of the pillars of capitalism is rational self-interest, and that goes both ways, not just in the business side. If you can get a refund for something because a company has made a bad decision about how they do their business, why do you care about whether it's fair or not to the company?

I don't care if it's "fair". I said I would take it. I don't give a shit about Sony or Valves bottom line. I just know it's not going to happen because there are plenty of reasons it wouldn't be offered.

Let Sony and Valve, and possibly the court system, worry about what their legal obligations are.

There is absolutely zero legal obligation here. You purchased a product and agreed to a license. They can add a requirement for an account at any time. Plenty of games get sold to a different company and require an account with that new company. No one has ever reasonably argued they should be refunded for that. It'd be ridiculous. There's no refund coming.