Looks like we've got ourselves a new moderator.....
Fraid not, just my opinion, much like yours I suppose.
Sorry to be so forthright but I feel that neither of these posts contriubuted anything at all to the discussion, and they could probably have been made on pretty much any other thread on PPRuNe. For that reason I thought these comments were pointless and it would have been far better to just not take part.
Thinking again about this thread it does seem to me there is a reasonably subtle different between a pan and a mayday, if not in the precise meaning, certainly in the way ATC react.
My single pan in a sep produced a full ATC response with fire engines in hot pursuit down the runway.
On balance I can see Rustle and others point of view - but I still feel that you may as well have the full attention of AT. After all how often do engine failures occur in a twin or for that matter other events "justifying" a mayday. Have the full attention of AT on hopefully the very few occasions it happens and for sure if I am in the area it will not inconvenience me one bit. I will just be say a silent prayer that it all works out well for you.