[BobbyJo]

How so? Wikipedia is a bad example as it is probably one of the most heavily moderated sites on the web. Social media is still 100% possible, it'll just be impossible to scale overnight as you'll have to scale moderation efforts with your username.

[ryukafalz]

Wikipedia is heavily moderated, but primarily by volunteers. Do you think that would be sufficient if the Wikimedia Foundation was liable for anything bad that users might post? That’s putting a lot of trust in your community, and the consequences of volunteer moderators slipping up or missing something are pretty big.