This one is pretty simple. Don't lose anything when being kicked from a party. This mostly applies to heat but can also be items you have picked up. C'mon, it's pretty annoying to be kicked from a party by some troll and lose all that precious heat.
Getting Kicked from a Party
I know this happens and I often don't kick people from my party for this reason. If
Crafting items can be tedious, because of heat and fire crystals. So allow them to keep Heat, at least.
I have this problem so many times.I fight against a boss,and we defeat it,and when the token falls down,I find myself in Haven. :/
I had something like this before,but in reverse.I wasn't able to get crowns,so I had to do FSC.But my rank was too low for that.Someone wanted to help me by inviting me to a FSC run with 2 more good guys.After we started,they left me,so I had to battle my way through hordes or mosnters with my Calibur set only.I actually managed to defeat Vanaduke with it.
Let's not go off topic : I think you should have power to give temporary ban to those who kick you to troll.
make your own party.