Well, I've been playing DST for a while now (on PC em PS4), and my friends and I always have the same problem: we're playing on cooperative server and some player come in our game, set the base on fire and/or take the most valuable items and then leave!!!! I feel unsafe playing DST without my friends because of those people who ruin our game. So, i've been thinking about some solutions:
1) That we can report those users. In PS4, specially. And they receive punishment for those acts;
2) When a Player is kicked/banned all his things is automatically dropped on the floor and he leave the game with nothing on their inventory. Because, sometimes, we're affraid of kickim the player and he have something valuable on his inventory.
Now, another sugestion. MEAT BALLS!!!!!
The food that is most easy to make. Imagine if the items that you use to cook your meat balls produced differents meat balls? For exemple: If you make yoour meat balls with green mushroom, you'll receive +5 os sanity besides the normal meat balls give, or if you use ice than you have "Ice meat balls" and you lost 5ºC of heat, or if you use pepper, than you receive 5ºC of heat. Got it? I think that's nice 
So, that's my suggestions for now. I hope we see at least the changes about the mean players soon.