After working in finance-related IT for 16 years, I signed up for the Level 1 CFA exam to take it in December of 2009. I've been in IT for 20 years but I thought, "How hard could this be?" I found out. I ended up studying for over 350 hours and was thankfully one of the 33% of people that passed the test when I took it. 67% of people that took the test failed it.
So I ask you - how much of those 350 hours of studying do you think I can squeeze in a Hacker News comment? Do you think you could teach a financial analyst how to analyze Java code in a Hacker News comment? Would you take the time to even try?