I agree, I really don't understand the logic of hiding subscribers either. I have never hidden my subscribers' counts, I believe If you be transparent to your subscribers or other people who visit your channel, it will create a sort of trust and thus, it will motivate people to help you grow but again, I will respect your decision of hiding it If you must but since now, YT is taking off that feature or permission to hide the subscribers count, I would like to see how people might react on it. I have a few friends who believe If they hid their subscription counts when they have low subscribers, it might trick people into subscribing, which is quite wrong but some people have different reasons for doing things, hence, it might be fun to see how it will go for them.
The one good thing is that impersonation of the big YouTubers' accounts will be curbed or stopped at all. I personally have come into such a scenario and have found a few channels that were impersonating TubeBuddy and getting people into Crypto currency scams by using the same logo and everything.