I'm not a fan of bluesky - I think that the main social media shouldn't be owned by a single company, since that gives them too much power.
But subscriptions aren't always a bad thing, especially when it doesn't restrict necessary features. Running servers costs lots of money, so its understandable that when something becomes bigger to have some kind of subscription.
Let's instead focus on the actual things that we shouldn't be okay with, like A SINGLE COMPANY OWNING THE CENTRE FOR FREE SPEECH BEING A BAD IDEA, WE LITERALLY JUST SAW WHAT HAPPENED WITH TWITTER IF YOU HAVE A SINGLE POINT OF FAILURE-