I don't have a problem with people asking for a reasonable fee to come and trade. I just avoid the ones I feel are charging too much. I'm more concerned with the amount of stealing that's going on in this game. It seems much worse than it was in New Leaf. Last week I had a really high turnip price and I opened up to allow people to come sell all afternoon. I didn't ask for anything, but several people would pop up a quick message to tell me they left me a tip by the airport or fountain. When I would go to pick it up, it wasn't there. I started walking back and forth from the airport to the shop and watching people and that's when I noticed there was another girl there doing the same thing. She was following people back and forth and stealing the tips they were leaving for me. The way she was following people probably made them think she was the island owner when she wasn't. As soon as she realized I had spotted her, she made the laughing gesture and then did the silent leave thing. I was stunned. I have no idea how many tips she stole, but I do know I had a lot of people coming in and out that day, so it may have been a lot. Now I feel like I have to monitor everything when I open up to help people and that takes the fun out of it for me.