Survivors who think they are good
Lets face it, whether you believe the game is killer sided or survivor sided, one thing that is evident it the killer is in charge of the game. If the killer wants to camp then can, if the killer wants to tunnel they can and if the killer just wants to patrol the gens they can.
The same is true to compendium and the midnight grove challenges. As a survivor you have challenges like make saves, do gens, open chests, drop pallets in chase and cleanse totems. These may take you a few games if you go against a good killer or your team is not too great.
As a killer you get challenges like disturb crow, break pallets, break gens and hit survivors, all which as a killer you can control. If I just want to do my challenges, such as disturb crows, I can pick my worse killer with no perks or addons and run round the map, leaving the survivors to do gens and escape. If I need to break gens, I can just patrol the gens, breaking them when the survivors scatter, never needing to chase. If I need to break pallets I can chase one survivor round the whole map, allowing them to drop every pallet. I am in charge of the game, I decide how I play.
This is where I come to survivors who think they are good. These are the ones who open the gate and stand there till the last minute, close enough that they can be hit and still crawl out, but not brave enough to stand further away. They usually have flashlights and spent most the time running from the killer, dropping every pallet and shining the flashlight, never actually realising that the killer is not chasing, that they are actually going in the opposite direction and doing something else. They stand at the gate, bouncing up and down and flashing the flashlight that it is some celebration.
Survivors learn that most of the time when a whole team escapes, with minimum ease, it is because the killer was playing their own game. Take it and escape quick, because the killer probably just wants to get onto the next game. They do not care about you. You have not played the game of the century, be grateful and let the killer move one.