No harm – it doesn’t really matter - but it does make the term fairly meaningless if it’s too inclusive.
Agreed; but like so many terms in aviation, it's a subjective term that can be employed as broadly or narrowly as one wishes. It's rather like the term "Captain" ... whilst most of us would never style ourselves as such, British Airways
et al. don't have an exclusive right to award that status to their employees.
Excuse me now, while I go polish my four gold rings so that I will look extra smart when I next go to rent a "T41 'Mescalero'" warbird.
P.S. What kind of a silly name is 'Mescalero', anyway? Did they
really think that anyone would ever call it that? Yes, I know that Piper has the Apache, Commanche, Aztec, etc.; but Mescalero???