Such a sad story if it's the case. I've only ever flown from Sywell once, as a guest of a fellow Prooner last year, and found the place utterly idyllic. I thought the NSF folks were very friendly and helpful, the atmosphere around the club was professional and approachable, and the fleet has enough variety in it for me to seriously consider switching clubs from where I am now.
Okay, so NSF aren't closing, they're just moving, but I do find it quite saddening that they should feel such action is necessary. I don't know the full story, but from my very limited viewpoint the airfield management's attitude does seem to be extremely counter-productive.
Good luck to NSF in their new home at Sibson, chances are I'll be poking my nose through the door in a few months.