I still don't know who is responsible, but someone I know has not only signed me up for his monthly physical joke mail (I'm up to three, expecting four now), but they're paying nearly twice the monthly Patreon subscription to have them mailed to me internationally in Canada.

The first one was a awkward family photo that read something along the lines of, "New family has moved to [my street here]. Please don't talk to us. It's nothing personal, we're just in a religion that makes us not want you to talk to us."

My wife and I had a hell of a time pinpointing where it even originated until finally finding a somewhat obscure Twitter post, using reverse image search on the postcard.