Suppression of admin/mod accounts from /about

[Moin]

I am not sure I understand the request, but to me, it reads like a request for the existing about_page_hidden_groups.
https://github.com/discourse/discourse/pull/28809

@Discourse

Excluding Users from the admins and moderators lists

To hide certain users or groups from appearing in these sections, use the about_page_hidden_groups site setting. This setting allows you to specify which user groups should be excluded from the admins and moderators lists on the About page.