It's like you go to the store, standing there with your bills in hand, and the guy just says 'please wait there, I'll get to you when I'm ready.' then proceeds to have a smoke break.
I see your point, but I don't think the analogy fits. In that case, it's infuriating because (a) you actually had to travel to the store, and (b) it's supposed to be open right now.
Medium's new business simply isn't ready yet. It's like the restaurant that across the street from my apartment last year and put up a "Grand Opening: March 15th" sign in February. Or Apple announcing their new iPhone before its release. Etc. Nothing wrong with that.
It's like you go to the store, standing there with your bills in hand, and the guy just says 'please wait there, I'll get to you when I'm ready.' then proceeds to have a smoke break.