And then you decide to get another job and next guy to maintain the code is utterly confused and misdirected because let’s be honest, there’s no documentation or there is but is either not up to date or sparse, theres no thorough unit testing (lucky if there is any). Not saying that’s your case but it happened to me personally to be on the other end a few times and let me tell you, it’s quite an effort to ramp up on such projects.