Gyms are like musical chairs just before midnight now. No one wants to take over a gym during the day. One trainer can take down a gym after 3-4 times through. Late in the eve trainers try to grab a spot and hang on to get a cumulative of ~8hours. You could have many mons in gyms, feeding them berries, etc. during the day but it doesnt matter. Should be a mechanism that makes it harder to knock down a gym the LONGER it is held - like an additional space for a friendly team mon every 12hours defended. You need to fix this. Hardcore players getting annoyed.
Emerikol about Pokémon GO, v1.37.2