Nah, it's just a small-scale form of wealth redistribution. The poster takes themselves out of the job market (making way for someone else), and then goes and spends their IPO money at a favourable exchange rate overseas. Literally everyone wins (versus the poster hoarding money and holding a lucrative job).
Sure. If everyone became software engineers then we'd have 8 billion IT staff and zero food production, which would lead to the extinction of human race by mass hunger.
I'm not sure what's exactly your point besides "if everyone does exactly the same thing, then society collapses".