I eat whatever I want, in whatever amounts I want and maintain perfectly.
I don't disagree that
you eat whatever you want in whatever amounts because it may be true for
you. (I'm not there with you, so how do I know?) But speaking on behalf of most of us mere mortals, experience has taught me that when
I eat whatever
I want in whatever amounts, very bad things happen.
Perhaps the way to short circuit this is, let's hear the details of your "eat everything whenever" program and let others on the site judge for themselves. (For example, on average how often are you eating, average caloric consumption, what do you eat, are there particular foods or nutrients that you focus on, do you consume alcohol, do you offset caloric consumption with cardiovascular activity, etc.)
(As an aside, your prior quote "You obviously haven't expanded your knowledge of diet enough" is just a bit condescending though, particularly to those whose experiences may be different from yours. Maybe you have a great metabolism.)