I can't find the comment, but regarding asking neighbors for items, someone wrote that if you select more than 20 neighbors to ask the game selects 20 random neighbors and only sends the request to them.
Is this true? It doesn't seem correct to me. I know we only recieve 20 items per day, but I always thought it was from the 1st 20 to respond, not that only 20 were sent the request.