[alexmorenodev]

https://www.laarc.io/ uses it. It's a HN clone created by an ex-employee from S2 (which develops Heroes of Newerth, a Dota clone). It's available on github as well. https://github.com/laarc/laarc

[hjek]

Looks like a fork of HN, so not really created by this S2 ex-employee.