Indeed, the extremely minor inconvenience of creating a gap in that scenario is very common even in the northeast US. It's the other half of the spectrum, where

Indeed, the extremely minor inconvenience of creating a gap in that scenario is very common even in the northeast US. It's the other half of the spectrum, where it's a more severe inconvenience, that it's uncommon for a northeastern driver to accommodate, from which the perception arises that we fight people who are signaling. The signaler is the one picking the fight, and we simply don't entertain it.