It is instructive to look back at the various posts on this thread in late April when DL announced upgrade from a 757 to a 767. Let's just say that it is clear that Skipness-One -Echo, VickersViscount and CabinCrewe have a somewhat better understanding of the industry than A350Saltire and GoEDI.
One assumes that EDI offered a "deal" for DL to introduce JFK - why? Why add more seats to a route that clearly doesn't need them and further stress EDI's inadequate facilities (see my previous posts)!
I'd suggest you don't know the slightest thing about any of us so your blatant attempt at trolling is best kept to yourself.