@Tez Asking for specific examples really hits me in the warm-fuzzies.
On GH, the metaplot was “small town supernatural sandbox causes psychic trauma to residents.”
We attempted to reinforce it it by running weirdo stories and scenes, usually with the goal of being simultaneously hilarious and horrifying, and by establishing as part of the core concept a way that people could play with the supernatural elements without needing staff intervention (Dreams).
Specific examples included a long-term story about the proper disposal of the bones of a serial killer, our primary plot-dispensing NPCs being a blob fish (occasionally in costume a la a bridal veil or monocle) and Juno from Beetlejuice, and one-off scenes like a Christmas party that gets trapped inside a snow globe.
On ODW, the metaplot is “playing in a version of Anne McCaffrey’s world of Pern where the book canons left things in a sad state and the PCs are rebuilding a better future (and also we ignore the stupid parts of Pern canon).”
I’m implementing it by recreating the iconic Pern moments as on-camera moments while flat-out ignoring parts of canon that are stupid, and by highlighting story moments that lean toward positive momentum.
Specific examples include on-camera Threadfall scenes where PCs get to flame Thread and take injuries, running a Hatching where nobody has to fill out an application first (with future plans to hold a colorless Hatching; IYKYK), and telling stories that mix typical Pern themes like a Lord’s son standing for Impression with stuff that just sounds fun like the possibility that his family has been cursed for centuries.