Part of it is that it's very different as a neighbor. My whole building is zoned residential. My neighbors are semi-stable, living here 1+ years at a time, usua

Part of it is that it's very different as a neighbor. My whole building is zoned residential. My neighbors are semi-stable, living here 1+ years at a time, usually longer. I recognize them, we feel reasonably comfortable about the people in the building, we have some idea about how to handle noise in a way that doesn't cause huge problems for people, etc. For example, my building at least has some informal etiquette about posting a notice that you're having a party in advance. If the apartment next door turned into a hotel, there would be random people coming and going and I wouldn't be able to count on any of this. I would expect more problems, but even worse, rotating problems, where someone comes and goes and then another person comes. At least if it's one person you can talk to them and work things out, but if it's a new person every 2 days, it's all over again from the beginning each time, and they may not even care, because they aren't invested in living here.