I was invited as one of the speakers for the Artic Game Conference 2019 where I talked about "How you design a game for your audience and not for yourself!"

I believe that as a game developer it is super important to be able to distance yourself and your own personal preference and instead be objective in decisions for what will be good for the game at the end, and especially what will the players like. 

In most cases, you might not be the target audience for the game that you are developing and in those cases, you need to understand the players in order to design for them.