"Everyone knows" what a relationship map is, but they're definitely not all the same thing, especially with these variables exposed:
You are here
Oh golly, let’s see a bunch of guys over-share about how much their characters have been having sex!! ... for those few of you remaining in the room, you’ll see us talk well beyond the boilerplate. Sex has been freed-up in role-playing over the last decade and a half. This seems to have freed us as well into dialing-back and modulating how it plays into everything else, to find some new things this medium-and-activity can do.
It's not a metaphor. I'm talking about D&D as religion, not merely "religious" as a colorful synonym for "passionate." This is Finding D&D, Part 2, addressing TSR as orthodoxy and the resulting construction of culture and values.