Provo, Utah is a hotbed for startups despite being made up of at least 90% people who don't curse or drink beer. There's your counterexample.
What's with the "we"? Are you attempting to speak for developers as a whole?
Thing is, I've never met a great developer who gave a crap about a coworker's religion, political beliefs, whether they drink or not, etc. I've met plenty of mediocre ones who do.
Well, it looks like the mediocre developer's qualities are on display in this tool, as Rowan Manning sure seems to care a great deal about whether you drink beer or not. We are talking about the kind of person who thinks "cutting edge" in a job description is a "fail" because it sets a competitive expectation.
There's a difference between drinking beer at work and actively advertising that this forms part of your "culture" at work.
The company I contract for has a bar in the office and has had beer in the fridge on Fridays for the last few months. This is not something they put in their job adverts.
What's with the "we"? Are you attempting to speak for developers as a whole?
Thing is, I've never met a great developer who gave a crap about a coworker's religion, political beliefs, whether they drink or not, etc. I've met plenty of mediocre ones who do.