Totally agree. ^^ There are a million different scenarios and I would lean very hard towards starting off easy peasy with folks and then "working your way" up the ladder if the "nice guy" approach doesn't work. I could write a book here, but don't have that time right now.
We bought our farm about 15-16 years ago and at that time we knew no one personally that lived really close to it. We were "outsiders" in that sense. I determined to develop relationships and friendships with the "neighbors" wherever possible and now, many years later, I am happy to say that we have developed long lasting friendships with people in the area of our farm and in a large sense, they watch over it more than we can.
If you come in "guns blazing", you are not likely to have as much enjoyment as you would if you take the friendly route. Now then, if working with people on a friendly basis doesn't work...there is a time to escalate things IMO. Some, but very few, people do not seem to be able to get the message without taking a firm stand, etc.