I hate the 50 coins a day rule. I put two Pokes in two different gyms. Both lasted 8 hours before midnight, the first one got kicked out at 7:23am the next day and I received 50 coins. My other Poke last 28 hours but got kicked out with 11 minutes left in the same day as my first 50 coins. So I got nothing.
I get you guys want people to buy coins to buy more stuff; however, when you take my incentive to play away it makes me want to play less.
Drover about Pokémon GO, v1.39.0