I currently still stuck between "what I think is ‘right’ (*) " and what I see lots of people wanting.
At least I’m aware of this tension.
(*) What does “right” even mean, @GreenAsJade??
… I think it means that I’m like Conrad, in that I think timing out on a turn is simply something that must be discouraged in any situation.
That means that I like seeing “Drop out” for situations where a person timeout out.
I also love the idea of having casual rengo games always play out to the pass-and-score (no resignation). It’d increase the chance of every player getting a turn 
But I do appreciate that this probably doesn’t appeal to the people who are actually using that feature
It’s probably the case that until there’s team-resign, then resignation should show up as “left” or similar, not dropped out … that’d match the sentiment I’m reading here.