What bothers me a little is that Oleg wrote that he'll fixe medium quality for online play if I understood well. I understand that through fixing this everyone should get the same chances even with a low end computer. On the other hand you'll just get medium quality if you play together with some friends with same high end computers.

I think quality should be set by the host/server. Most servers will choose quality that will fit most of their audience anyhow (after a try and error period of course to find good settings) in order to get their house full of players. But it leaves everyone to decide if he uses better quality when flying in a coop for instance ...