I've never done that, never seen that, and never heard about that til I read this post but........if you think its cheating you're an idiot. Sounds like good strategy to me. You can counter that by getting a lead early before they get their bubbles, then get your team (if organized) to just sit on the other side of the map away from them. You don't get points it you don't get kills and that would draw them out away from their bubbles looking for you! Don't cry about it, just play smarter!