NCUs (Non contributing users)

So, basically users who are just there for the sake of it on your platform and will flee at the first signal of discomfort or change can be put into NCU bucket.

Main question to ask yourself is whether you want these kind of users on your platform?

To answer that you need to understand LTV of these NCUs.

Creating a new acronym LTC (life time cost) for users which can be the total cost that user caused the company throughout their lifetime.

If LTC >> LTV, you should definitely start getting rid of such users.

If LTC ~~ LTV, you can take a call on the basis of your company's business and your core metrics. If user growth and engagement is important for your platform and make a call.

If LTC << LTV, try to focus and get more of these NCUs. By definition, these users shouldn't be in the NCUs bucket.