Man, I bought some stock a bit after IPO, it dropped a bunch, and I idiotically sold later at a slight loss in 2013 after people all around me constantly went on about how they would never make money. It's now worth 17 times what I sold at.
I also remember around Google's IPO people questioning how they'd ever make money.
I used to pay a lot of attention to the comments of certain HN users who made well reasoned but (with the clarity of hindsight) mostly doomer predictions about various topics. I wish I hadn't listened to them.
i think i sold my apple stock at $10/share. I also had my finger on the buy button for AIG at around $1/share in the depths of the financial crisis but didn't do it. Now I just stick to code, my 401k, and company RSUs heh.
Basically, never ignore these things.