He has made up his mind pretty long ago, so I don't think a few Lounge posts will make him rethink his life, if he needs that at all.
And what's wrong with running away, if he's really doing that? Running away from a shit place to live seems pretty reasonable to me. I was running away from living with my parents and from my perspectives in my country, and it was a pretty cool and usable experience. Much better that trying to make something out of that shit.
Okay, Mars is a one way mission, but I can imagine dying for much lesser things than that.
My only fear would be about a mission like that is that it can be actually boring as shit, not something you dream about.
But one thing is sure, L.Spiro had thought things through.