Until somebody owes up to doing it by hand my money is on algorithms, caching and flagging. I could easily be wrong though.
I've seen exactly one intervention in all my time here on HN and it was well warranted ('Arrington'), other than that nothing that I could point my finger at.
I've seen exactly one intervention in all my time here on HN and it was well warranted ('Arrington'), other than that nothing that I could point my finger at.