Not only do I find this idea highly unethical but would be a total nuisance. In simpler terms 'a pain in the ass'. If you go in-game, click multi-player, you see lots of rooms empty. Some where no one is present. Sometimes it's hard to even find a place with people in it. If more people wouldn't make private rooms and kick intruders, we could have a fun time at the public servers we have. I don't get the point of making new public servers when all of them are quite empty.