My personal way of life is, live and let live. I tolerate neighbours, and expect to be tolerated by them. At least to the same extent.
If someone bothers me, I take the hard stance. Everyone has something to hide, something they're ashamed of. He uses the public to force the airfield to close? You give the public interesting information anbout their new president. Perhaps, as was already suggested, notify his insurance of his doings.
I get a feeling that this guy bought the property cheaply, using the noise excuse, hoping to sell it at a higher price once he manages to completely close the airfield down.
Last but not least, you should approach the local MP,and invite him/her over to listen to the noise levels. I had a similar problem at a model flying site. A new neighbour kept calling the police, stating that the noise scared his homer pigeons. We invited the police Sergent over, and not only did we win his approval to fly, but he fined the guy for wasting the police force's time !!!
Take the hard stance, works wonders for me. But be careful, don't over do it.