It's odd how very few on HN doubt the ability of HFTs to make money, but when it comes to active management the assumption is that no one can really add value.
People like btian below feel they have a moral obligation to protect the innocent from the charlatans, and hey at least that's noble, even if it is misplaced.
I don't think the way I trade is right for most people. Primarily because it takes time and many people don't care to invest time in managing their money. Also because it takes a lump sum of capital that many people do not have. But the idea of making very high probability trades using leverage is not even provocative, it's boring and the antithesis of "get rich quick". It's about grinding it out, carefully balancing your delta risk to guard against "black swan" events, managing trade timeline to reduce gamma risk. Anybody can get an education in this stuff, it's not black magic.
I avoid talking about this stuff on HN because the downvotes come in swarms, which is something i SMH at -- ideas getting censored here of all places -- but I don't like the "nobody can make any money trading" folks to have the airwaves solely to themselves.
I currently do research based stock trading and momentum based e-mini futures to give you an idea of my level of knowledge and risk tolerance. I've done okay with both, but I would like to continue to improve.
While I do not do finance for a living, I have scratched the surface and recognize that there are infinite interesting problems out there in finance waiting to be solved.