Thanks, I did check both examples and what it strikes me about them and other similar "good" examples on HN are they are usually based on failed strategies or technologies, so basically the discussions are pointless...
All in all, the YCombinator is a for profit corporation, which by censorship and bullying (or so called "down voting") is shaping the people on Hacker News to frown upon small or lifestyle businesses, because they need the flock of dreamers to get their underpaid workers to work on mostly failed startups... They are not out to help you or anybody else, this is how they make the money in the end and they go after everyone who threatens their business model... If you are to remember just one thing from my short stint around here, please remember this: They need you, but you do not need them!
First link doesn't constitute a trading strategy at all. Again, all rant and no substance. I'm starting to think asking for more is pointless after this moment. I give up.
https://news.ycombinator.com/item?id=8499305 https://news.ycombinator.com/item?id=11887147
And your so-called good behavior in hn is; you show no substance whereas they provide something to start hacking.
Perhaps this helps?