We're not having van week, it's just that Old_Zircon lives the Van dimension and sometimes his reality seeps into ours like a van-themed Mandela Effect.

Where everyone vans, all the time. It's impossible to not van.

At one point a major van manufacturer tried to introduce a non-van vehicle. Their headquarters were burned to the ground and all management hanged publicly

Leave all shirts at the entrance to the van dimension.

"If religion were true, its followers would not try to bludgeon their young into an artificial conformity; but would merely insist on their unbending quest for vans, irrespective of artificial backgrounds or practical consequences."

-HP Lovecraft