You just need to read all these reviews to see how turbulent the working environment is at BrewDog. Lots of people saying its the worst place they've ever worked, countered by positive reviews harping on about the amazing opportunities.
Why would you even want to work somewhere, where there is zero harmony between its people?
When I started working at BD, I was of course excited by the 'opportunities' too. After a 3 day induction, your feeling pretty pumped. 'Look how cool we are, we bring dogs to work, look at this cool facility, you can wear what you want, everything is awesome!"
When I was in my 'head in the clouds' phase, I was approached by a member of HR and asked to write a review on glassdoor. They didn't ask everyone, just those of us who appeared to like our jobs.
It took a little while for all of that positive marketing fog to settle before I saw all the cracks. I realised that those at the top were manipulating me. I had some major concerns over the way certain people were being treated and when I took them to HR I was completely shot down. HR doesn't exist in BD. The manager is there to protect the interests of 'The Captain'.
You can change things at a surface level, that's okay. But when you've fixed all the and you start looking up a level, or to the departments at your left or your right. You realise that these problems are so deeply rooted in the company culture that nothing will ever change. And only those who are aligned with the aggressiveness and questionable morals of the company will succeed.
If it's opportunities you are after, go work for any start up and you'll get a similar if not better experience. Its not like BD compensates you for their constant dramas anyway.