As of this reply, of the 20 links on the frontpage of !comics … 9 are “Heathcliff Without Heathcliff”. Sometimes the comic has as many as 15 on the front-page.
The account spams the instance - I just don’t know if it’s an in-joke, the poster just has nowhere else to post an over-used joke, or the mods don’t care about spamming.