That is my startup idea. I don't want to take this thread even more off-topic (if that's even possible), but please feel free to contact me at the address in that first post to explain why you think it is a bad idea.
Dropbox is a huge business, with real revenue, which has helped millions of people. Tarsnap, despite cperciva's obvious talents, has not achieved anything like that level of success. dhouston wasn't flaming people in the thread, cperciva was.
Part of a really good comeback is substance. cperciva had the snappy retort. He really had won the Putnam. And on a much smaller scale, he won a comments thread on Hacker News. But the 20 posts there didn't create real world value. dhouston did. Maybe that's the real lesson of Hacker News. The best thread is the one you don't participate in, because you're working.
That is my startup idea. I don't want to take this thread even more off-topic (if that's even possible), but please feel free to contact me at the address in that first post to explain why you think it is a bad idea.