The article doesn't mention it, but am I right in assuming this basically comes from McDonald's? There are a lot of places around the world that copy the "'s" where it doesn't exist natively, but only for restaurant names or similar -- like "Bob's" is the McDonald's clone in Brazil [1]. I'm mostly curious whether "Rosi's" and "Kati's" in the article are seen by Germans as intentionally trying to look "foreign", rathe…
I would say "Kati's Ecke" (urks) should look modern (and fails at that, looks like cargo cult to me) or is an unintentional error of the owner because they don't know better (maybe obligatory English lessons in school compromised the actual rules of German). I am sure it doesn't look exotic to most Germans. We actually use the apostrophe in cases where adding the possessive s is problematic. E.g. "Felix' Ecke" There…
We feel you over here in Sweden. Särskrivning (roughly “word splitting”) is a “problem” far greater than the apostrophes for us. Americentric Swedish Android keyboards are terrible offenders that happily splits words in two.