I'm sorry you interpret what I wrote as rude, or insulting, or anything of that kind. If anything, it was supposed to be mildly humorous. And when I say "you aren't supposed to", I don't mean you personally.
P.S. My personal conclusion from this, and from many past bug reports that causes us to add explicit remapping in many places, is that face-remapping was a clever hack that should not have been allowed to happen without a thorough rewrite of all the basic code which supports faces and their merging. Hindsight is always 20/20.