Almost all the shops in the sign photos are Asian. Because the font simulates brush strokes, it adds an Asian element, since Western writing doesn't use brush strokes. Brushes may be used in painting letters onto a sign, but only as a tool to fill an area, whereby brush marks are regarded as artifacts to be avoided. The font doesn't look quirky to someone whose native writing system's canonical form is rooted brush s…
Agreed, it’s pretty ridiculous to think otherwise.
But this seems over-the-top. Who are these "ridiculous" people in New York, whose grasp of the situation around why this particular font ever came to be used in NY signage is so laughably feeble and inferior to the commenter's own?
There may be no mystery worth solving, but neither is there a clearly identifiable moment when a shopkeeper selected the font for the first time. In high-profile design, in contrast, historical moments like that are often traceable—they do have an author.