I used to have 250 Dutch neighbors. I tipped 50 neighbors each day and went alphabetically. leaving a personal message is what I like, something to do with the message I got from them. However it takes a lot of time. I like to have new neighbors from all over the world to hear some new stories and get to know new people, and a maximum of 50/60 would mean I can still leave a personal message and remember all the material requests and still tipp and gift everyone each day.
So for the people who would like a steady and friendly neighbor, you are free to add me
I do not think that there is an etiquette, however I do hate the phrase: 'Full'. BE CREATIVE!!! ghihihi