Except there are players who never want food items, or never want the new stuff, only basic parts, or don't want their wall filled up with "visited" posts because then their own posts get buried... There really are no "one size fits all" rules in this game when it comes to neighbors! I have fantastic nbrs with 0-star ratings who are super-quick on the parts exchange and request answering (CRITICAL!), and I've deleted many 4-stars who constantly posted my wall right above my parts request post (had to have seen it!) and then sent me cappuccino every day (DECLINE!). The only rule you can really go by for sure is "It just depends" lol.