Phoronix: Compiz Working On Unredirected Fullscreen Windows
Ubuntu developers are working on improving the performance of Unity and Compiz, but it may take a while that will almost certainly extend past the Ubuntu 12.10 release. As part of this, support for un-redirecting full-screen windows has been improved...
Procmon is a tool to respond to changes in the process landscape. You can have a rule set so that when such and such game is started, kill unity. When it exits, start unity. Stuff like that... pretty simple, and compiling it is a breeze because it really is only one C file and one H file, and it acts as an interpreter similar to how bash acts as an interpreter.
I posted a valid solution to the issue, how is that complaining? When unredirected fullscreen gets implemented, that will be good, but most people complain about Unity's design not its implementation. They think it is a sucky idea for a user interface. I don't think it's all that bad, but you need to understand what they're complaining about for you to complain effectively about their complaints.