There's not really anywhere dedicated for this kind of thing, but this thread is close enough. I just saw his DLC/Game Sharing blog and wanted to comment on here, because it's something that really irritates me.
DLC on a disc makes perfect sense. The idea that this is a con of some sort is bullshit. BluRay's are massive, I'd much rather they use all that space for potential content then me having to download it and take up harddrive space. DLC is produced with it's own financial plans, they're green-lit independently of the main game, if GTA4 had shipped the same day as The Lost and Gay Tony, you should not get all three for the price of GTA4, it makes no difference whatsoever if additional material is on the disc. One thing I do disagree with Jaffe on however is the idea that you own the disc and everything on it, and if you can in some way unlock this material without using the official channels, you should do so. That's bullshit. All that does is give credence to the idea that you're buying a disc, and whatever is on it is yours as appose to how it actually is, which is you're buying a license to play a certain amount of content.
As for game sharing, I think it's bad form in terms of not supporting developers, however, Sony are the ones who made this system, and people abusing it is Sony's fault. I don't agree that it's really any different to lending people the game though. Both things allow a limitless theoretical player count, within the constraints of the time it takes to share it. One gaffer could buy and lend Jaffe's next game to every single person on GAF, one by one. Game sharing allows you to share it with everyone on GAF, five at a time. The only difference I can see morally is the speed in which you can spread the content. The reason piracy is immoral, to me at least, is because you can perfectly duplicate something as many times as you wish, five for game sharing is closer to one with lending, then as many as you choose with duplication.
An important thing is, you are weakening your own purchase by game sharing, something piracy and lending does not. If you buy Calling All Cars, you get five activations. Sharing it will reduce that amount for you. Lets say you have two PS3s, you want it on both, one dies, you've lost an activation, you replace it, that's three gone. You go and stay with your parents over xmas, you want to play it, you use an activation there. You are fucked. Game sharing weakens the product for a single owner. People game sharing are not doing so without a personal cost to themselves. If anything, lending someone something, is arguably worse.