It annoys me when say for example you have a rank of 900 and above and you create a game and then somebody enters it who is a newb , but when politely asked to leave because their rank is to low they dont leave and just stay there.Would it be possible to boot opponents in the match lobby?!?

I've lost the the number of threads like this, easy answer to all of them:

No

I'm pretty sure all your ideas have been asked by other people not so long ago, why not use the search facility to check that the idea hasn't been spoken about before?