How about the spawn percentages of lures. Me and my husband have boughten lures and when one of sets a lure it seems to spawn shinys and perfects for the other people who piggyback off the lure. Niantic avoided answering that question when my husband reached out to them about the spawn percentages. If it's that poorly designed it makes me want to stop buying lures all together and instead just find a lure in my town set down by someone else because I'm not wanting to waste my money if I get better stuff from being around someone else's lure.