The trade is sort of the default outcome among people who are, like, reasonably competent adults. But:
a) it still encourages (at least subtle) exaggeration or downplaying of your preferences (to get a better trade)
b) often, fastidiousness is correlated along many axis, so it’s more like “the roommate with stronger preferences isn’t get any of their preferences met”, and “the roommate who doesn’t care much doesn’t have much they really want other than to not get yelled at.” (temperature preference might be one of a few things I expect to be uncorrelated with most other roommate disagreements)
The trade is sort of the default outcome among people who are, like, reasonably competent adults. But:
a) it still encourages (at least subtle) exaggeration or downplaying of your preferences (to get a better trade)
b) often, fastidiousness is correlated along many axis, so it’s more like “the roommate with stronger preferences isn’t get any of their preferences met”, and “the roommate who doesn’t care much doesn’t have much they really want other than to not get yelled at.” (temperature preference might be one of a few things I expect to be uncorrelated with most other roommate disagreements)