[sebst]

Maybe I'm biased, but in the last days there were plenty of Show HNs about social networks:

https://news.ycombinator.com/item?id=21252544

https://news.ycombinator.com/item?id=21241476

https://news.ycombinator.com/item?id=21224211

https://news.ycombinator.com/item?id=21312318

[ChristianBundy]

All centralized, too. :(

[thosakwe]

It's interesting that they're all Reddit derivatives.