They sound like an absolute nightmare. I wouldn’t want to live next to someone with a nasty dog and a terrible attitude. They make demands of you but are unwilling to compromise themselves. They sound like the type of people that are going to get their dog put down because they don’t bother training it properly. Especially with a pitbull, you have to be really careful about how aggressive your dog seems. I’ve had friends who lost their dogs because they didn’t bother to train them and their German Shepherd Nipped someone while playing. So I think that your neighbors sound selfish and idiotic and don’t risk getting attacked because you want to be petty, the way I completely understand why you feel that way