Perhaps he was in a space where people were constantly tweeting things like "i went in with $5,000 and came out with a million dollars"

If he was actually staying in a page where these things are being twitted, he must've been full with greed and the motivation to invest more, but as it didn't turn out the way he wanted, he couldn't stand the loss.

Committing suicide because of a $500 loss is just crazy..