It may be due to the recent influx of second-level domain providers that the PSL (Public Suffix List) has adjusted its user count rules 
https://github.com/publicsuffix/list/commit/d333b72b39575da1ce6932b01d7c421a4107c620
**Number of THOUSANDS of distinct users this request is being made to serve:**
<!--
The guidelines state that PSL inclusion is considered only for
projects that have achieved a minimum of 2000 - 3000 distinct
users or more.
To be clear, 'users' is the number of distinct individuals
working directly with a relationship with the requestor in
using subnames of the requested space, and is not measured
as the count of the audience of users that would visit to
or interact with the namespace(s).
Please provide us this count, and identify if this is current
actual or it is an estimate. -->
Translation:
The guidelines state that PSL inclusion is only considered when a project achieves at least 2,000 to 3,000 distinct users.
To clarify, “users” refers to the number of distinct individuals who directly have a relationship with the requester and actively use subdomains under the requested namespace. This number does not include the wider audience interacting with or visiting the namespace.
Please provide this data and specify whether it is the current actual figure or an estimate.
My personal understanding is:
- At least 1,000 users → now at least 2,000 distinct users
- The definition of “users” is now less ambiguous: it refers to the direct number of unique individuals who actually use the applied-for subnamespace. For second-level domain distribution, this basically equates to the number of second-level domains; this is unrelated to the platform’s total users, users under other domains, or tertiary domain users (users’ users)
- Actual current data must be provided; estimates are no longer accepted
Related historical post:
https://www.nodeloc.com/t/topic/69531
Looking at the new ones now, it’s almost impossible to meet this requirement.