Am I extremely frugal? Some people seem to think so.
But then, some people just don't get the whole concept of being frugal.
If those people call me (or you) extremely frugal, who is right and who is wrong? I don't think either are. By their standards, maybe we're extreme... by ours, we're not. That makes it pointless to debate.
We'd have to draw a line that said, "this side is extreme and this side is not," and everyone would want to draw a line in a different place. Asking "What is frugal"? or "What is extremely frugal?" won't get you any definitive answers. It will only get you disagreements.