I don't know what you're talking about with the libre and gratis definitons. I have only refered to gratis, as in "not paying", never libre, though I'm not sure you have really shown the distinction.
Anyways, yes, I expect content to be free. Gamespy is not simply trying to stay afloat. They have many employees, wo are, more or less, payed to play games. If the listed sites can provide bandwidth free of charge ("not paying"), then I don't see why Gamespy, who makes revenue from their Arcade products, should make user pay. Well now, you say, they don't make you pay. Well, have you ever stood in the non-subscriber lines? It is so inconvenient, that it really defeats the purpose. The reason that newspapers and magazines cost so much, is mostly due to printing and disitribution. How many online news (RealLife news, as in in CNN, The Guardian etc) websites do you see charching for content? They may require you to sign up, but there are very rarely subscription costs involved.
The point here is not to see which website can make the best deal with the publisher. This is ultimately harmful to the end-user. The assumed norm, whether you choose to accept it or not, is: Publisher releases the demo, available at the same time to anyone who wants to download. Gamers download. A percentage of those gamers buy the product, thus creating a return on the advertising investment.
This is the way the industry has worked for over ten years, and you purpose that now, when the games industry is making more money than ever, is the time to change this?