They kinda do: the longer fans have to wait between new content, the more they have to self-perpetuate, and some fandoms are worse at that than others.
Case in point, we honestly have no clue what we're getting next season, so we have nothing to talk about. We don't know when it's coming. We don't know how long it'll be. We can't make any guesses plot-wise beyond "new passenger", because Tulip not coming back is the only certainty we have and any important questions about the train has been answered. Even that deer thing in The Green Car is barely worth any discussion, because it's just a bloody outline. We're lacking in waifus people are thirsty for, so we can't survive on lewds. And having only ten episodes of content means our shitposting game is weak.
Unless the next few shorts are amazing and give us tons to speculate about, then we're as relevant as the goddamn Apple & Onion fandom until the S2 trailer hits sometime next year.