Earlier quoted context omitted.
There is a distinction between website and the quoted "social media services".
Really? Define it then. Facebook is a website by all technical terms. Where is the hard defined line between social media services and a website? What is a website that hosts a forum? What is Discord? What if I run a WordPress website with the BuddyPress plugin? What about comments on my blog articles?
He (and podcast co-host John Gruber[0]) talked about the idea that Facebook isn't the same site for any two people. Due to the algo, everyone has their own personal version of the site. Therefore, there's no individual snapshot of Facebook at any given time.
I found this an interesting concept to point out. If one needed to distinguish between a website and "social media services," perhaps a law could be drafted such that such a condition was true.
HN, for example, would be a website because commenting and voting is user-based. I suppose that might mean Spotify and Netflix would be swallowed by the definition. The definition would then need additional language about user-submitted content.
[0]: https://dithering.fm