surely the main problem from a commercial , is its to close to france. the object of air travel being to travel greater distances and faster, than by other transport means (car / ferry / combined). not to mention from a reasonable populated area.
Yes I often use to bimble along the coast from EGHI for the 1p per kilo gw landing fee and a good coffee and butty. used to be good practise tracking all the vor's along the way etc.
But I always had trouble spotting the bloody place, its so flat and desolate out there.
Whatever the reality, good luck London East / Ashford International or even just Lydd