The author never said that Sahil is "just some dumb kid who got lucky". He didn't say they're quitting, or blame Gumroad's success for that.

Instead, he was honest about why a well funded competitor is a daunting prospect to someone who's prelaunch, and went on to say that that's not a reason to quit. On the whole, a pretty admirable post.

Read the damned post before you spew this self-righteous nonsense.