The fun starts when you have a multi tenant system, and you end up with some users having the flags enabled and some not having them enabled. You may find that

The fun starts when you have a multi tenant system, and you end up with some users having the flags enabled and some not having them enabled. You may find that you have to support both "branches" in the long run. Which can be a good thing in the sense your product is more configurable, but also entails a lot of the same grievances of branching because you end up supporting multiple variations of a feature. Or multiple combinations thereof