[p0ckets]

Singapore has this: https://en.wikipedia.org/wiki/Social_Development_Network, although I'm not sure how successful hikikomori will be at these events...

[alephnerd]

Singapore's is pretty unsuccessful - back when it was called SDU, it was jokingly referenced as "Single, Desperate, and Ugly", and these were well educated women. I doubt hikikomori would place well.