When I visit this page here on meta, I see a list of thousands.
When I visit the same page on my site, I just see one user, the initial user.
I’ve fiddled with the security settings to make sure that all groups are visible to everyone.
I’ve escalated the group levels and applied mod then admin to another users … but only ever see the one user in the list.
The users I am viewing it with has been an admin/mod/level 1.