I see where you are coming from, but I personally don't find the comment narcissistic: I read it the OP of the comment thinking out load, saying "ah! It's nice to know that I have thought about something similar, and someone made the effort to show that it works!".
Another form of:
"I could totally have built Google or Amazon if I wanted to, I'm just a lazy genius."
I think it's pretty inappropriate to gloss financial hardship as laziness.
What? No im saying it's one of the ideas i worked on before i switched away from the field...?