large companies who can afford the security infra to do those checks and store that data
There is no such company. This is just another way to ban “harmful” content. Verifying your identity and age to access restricted content is practically guaranteed to result in your identity being compromised within your lifetime.
The author misses the irony of leaving Twitter, a for-profit, centralized, social network for Bluesky, a different, for-profit, centralized social network. Hopefully it’s different this time.