> If you as an independent commentator are tied to a centralized platform, you are a feature to be sold, and will be muzzled or deprecated if needed.

Wasn't one selling point of Substack that you could easily leave with your subscribers, so substack writers aren't really for sale and can't be muzzled/deprecated? Or did it change since Substack was launed?

Also are you thinking about specific writer(s)/events when you wrote 'muzzled or deprecated if needed.'?