Too wide in OSX

On a 13” macbook pro, with the highest resolution OSX settings offer, Slacks minimum width still covers nearly half the screen. Given the choice, I would make it half as wide and collapse or at least reduce the width of the left column, which is probably 25% wider than it needs to be. At present, if my company chooses to switch from Skype to Slack then I’ll be forced to position around 30% of the Slack client off of the right side of my screen, or perhaps find a workaround. I submitted this as a bug over a year ago, received a human response, but nothing changed. I’m pretty sure this change would be very easy to make and would improve this product for all Mac users. Why much this thing be so much larger than its contents?

Josh Estep about Slack for Desktop