Given the culture of HN comments I reckon you'll get grooming tips and pointless anecdotes, condescending advice, or unhelpful peptalks.
What I'll say is that you probably are disillusioned with it because you saw how illusory most of it is. The best stuff is always produced by very small, tightly-knit teams, in an environment where creativity is allowed to flourish. In a monoculture like tech giant / unicorn startup, you're living in the Silicon Valley series bro and that's all there is to it.
There are lots of engineers out here on the internet doing fun things. We just don't spam github shit or write fancy landing pages to shamelessly promote ourselves. Join us.