Can I hide an admin?

If you’re self-hosted, this is possible with a plugin.

# plugin header here

module HideAdminNames
  NAMES_TO_HIDE = %w(investordude blahblahblah).freeze
end

after_initialize do
  class About
    def admins
      @admins ||= User.where(admin: true)
                      .where.not(id: Discourse::SYSTEM_USER_ID)
                      .where.not(username_lower: HideAdminNames::NAMES_TO_HIDE)
                      .order(:username_lower)
    end
  end
end