Comment by Zak

3 days ago

I'm not asking for a legal definition. This is Hacker News; in looking for a definition that would enable hackers to correctly classify things most of the time.

I think there is probably some combination of the following aspects:

-Content is user-generated -Content is curated by the company (i.e., users don't have the ability to fully turn off what is shown to them) -Content is not universal (i.e., users don't see the same thing)