[AlbertCory]

I think you're missing the point, both of you. It's not people's opinions I'd be interested in 50 years from now; it's just what they were talking about. Everyone might have an opinion about some event, but it's the event itself I'd want to know.

[mulmen]

You’re right, of course.

How many historical nextdoors are you aware of? For me, none. But is that because they don’t exist or just that no record survived? Social media is secret society.

[AlbertCory]

None. That's what I noted: all these neighborhood-specific social sites would be gold for a future historian. Or novelist.