The Rusty Ravine
An unfortunate state in indirect communication (e.g. text message, voice mail, social media post) when a given message warrants more than an immediate low-thought reply (e.g. "lol", "so true") but not enough for the receiver to actually schedule time to provide a proper response. Often these messages are then never addressed, leaving the sender to think they've been missed or unappreciated. This is exactly the opposite intent from the receiver who actually desired to deliver a thoughtful reply but never got around to it.
I've stuck my old high school buddy in the Rusty Ravine more times that I care to admit! He must think I don't care, but it's actually that I _do_ care.