i hate people with nothing better to do than MOAN about 3 days sodding noise.
its not likes its a nasty noise its a NICE noise
SAD SAD SAD SAD people
Spa is the greatest circuit on the F1 calender and if it gets removed because of some moaning types i will be shocked and amazed. 
Ignorance is bliss, isn't it.
Spa is one of the busiest GP circuits in the world. Nearly every racing series has a race at Spa during a season. Not to mention the various classic car racing series, and club events that go on there. It means the circuit is constantly abundant in noise. A noise most people don't like. Of course locals are going to be annoyed.
Then again, there is the argument that circuit is older than most of the residents there. The argument being that, you decided to live here in the first place, thats your fault.
I was at the Barcelona track once (not during a race weekend though). It says the track is in Barcelona, but it feels like your in the middle of nowhere. The hotel we stayed at, there was only 2 other families staying, and it was a big hotel, clearly built with the idea families would stay there during GP weekends.
Its a difficult one to call really. You can't just move the little town thats right beside Spa, and nor can you move Spa. Nor can just all of sudden stop racing at one of the most loved circuits ever.