There's nothing worse than living next to genuinely noisy neighbours, speaking from personal experience. However some people seem to get wound up about what I'd consider to be normal neighbourly noise, I.e children playing out, DIY, lawn mowers being used, doors opening and closing etc.
I have a neighbour (not next door thank god) who seems to get off on complaining. He whinged about his next door neighbours kids playing out on both sides, he reported another neighbour to the council because their dog barked a few times. It did but it wasn't excessive. Then he complained about someone else having a barbecue, and the again at his next door neighbours for walking up and down their stairs too loudly. He's probably just a miserable old twat who doesn't like to see anyone else enjoying themselves and living their lives, but it got me thinking when you live close to other people you have expect some noise surely?
An example, I live in an old terrace. Sometimes when it's really quiet I can hear my next neighbours TV when in my front room. I can also hear them opening and closing their cupboards in their kitchen, no doubt they can hear us as well. It doesn't bother me, in fact I barely notice it. But someone like that man would probably complain about it.
To me anti social noise would be loud parties and blaring music till 3am in the week, shouting, screaming and thing like that. Surely if you are so over sensitive to noise then you should probably think about buying a detached house in the middle of nowhere? Noise is a fact of daily life..,