I'm really wondering in what world you think a 20% tip is in need of a "karma tip".
And that article is bemoaning $12 and $15 cocktails. I'm not arguing that those are cheap. I am arguing that they aren't 20-30 dollar drinks, which is what the original post said. You've backed off from that by 30-50%.
And I agree you can find 16 or 18 dollar drinks in many places, I never argued otherwise. But you can't find $30 dollar drinks, much less pre tip, which is what the original post implied. And I'm not interested in you arguing for arguments sake. The original claim was that the cheapest drink on the menu was 17 and that most were 20-30. Find me a bar with those prices. I'll wait. But until then, don't pretend that a menu of mostly $14 cocktails fits the bill.