My friend @Lomias showed me this. Interpretation will be easier when you don’t know Chinese characters.
They are actually:
WELCOME FRIENDS FROM AFAR
This does give me the great (insane) idea to go paint large correspondence sigils around Amsterdam. Would that work?
I’ll paint them around Rotterdam. lol
Painting the Town Red: Incendiary Guerrilla Art Goes Viral.
Sayeth the newspapers.
Perhaps the Great Fire of London was some sort of… Correspondence Passover?