In the given Screenshot YouTube send notifications to their creators in YouTube studio & give warning in notification that YouTube Starting on 29 July 2022, YouTube channels will no longer be able to hide their subscriber count.
So may be it's bad news for small creators because they wanted to hide their subscriber count.
YouTube said To make it harder for people to impersonate other creators, YouTube channels will no longer be able to hide their subscriber counts as of July 29, 2022. We’ve seen bad actors hide their channels’ subscriber counts to impersonate larger, more prominent channels on YouTube - they pretend to be other creators in comments, then lure people to their impersonating channel page. We made this decision to help our community be safer as a whole but we recognize not all creators using this option are bad actors. We know some creators prefer to hide their subs count as they try to grow.
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