Re: NAPs
If you turn off NPC voting, then NAPs aren't really gone, but they only happen if your sim votes for them. Otherwise, you'll get notificiations about the voting window and NAPs being enacted, but if you check the NAPs on your mailbox, there won't be any. For neighborhoods where you don't have any Sims living, I don't think NAPs activate if you have NPC voting off, but I haven't tested.
I do know that since I turned off NPC voting, I haven't had any mysteriously broken community lots because of issues with Caring is Sharing (namely that NPCs would swipe required community lot items) and I turned off NPC voting not long after the pack came out, so we're looking at a couple of years of play now.
