I take a different attitude to "nice to have" problems. I work on a professional services team that is massively undersized relative to demand. Our role is less than a year old within the organization. We have far more clients in need of support from my team than we can give.

This is a great problem to have - lots of pent up demand. Nevertheless, it is a problem, and we must actively strive to solve it. It's nice to have lots of demand, yet if the problem is not solved, we will be giving up future revenue. A larger team will be able to support more revenue than a smaller team.

There is no part of this situation where it is a good idea to slow down on hiring, or to compromise on hiring standards.

Ninja edit: this is in contrast to things that aren't a problem yet. E.g., in the article, the author discusses not having password reset functionality. That is not yet a problem in the absence of users. It's not a nice problem to have. It is not a problem.