Needless to say, a lot of people, based off one story that I haven't yet finished, 
  now think I'm just another halfwit gamble-my-savings-away day trader.

The closest thing to a thesis of this post is that he is not a halfwit gambler as critics on Hacker News (including practicing market makers and quantitative traders) believe him to be.

  On some days, I feel the same way about myself [that he is in fact a 
  halfwit gambler].

Not looking good.

  You have no idea how much I've read up on financial history, probability, and
  behavioral finance. You have no idea the number of profitable 
  traders (whose track records I get to see or witness in real time) I've spoken
  to whom use a variety or combination of different methodologies.

Because you don't know what he knows, you can't be certain that he doesn't know anything. True. But, he doesn't record any specific knowledge here, so we still don't know whether he knows anything.

Looking worse now.

He then sets up several straw man arguments against him. But, amazingly, does not refute them.

Okay, I give up.