I thought it's obvious that Calhil simply wants to be that one dissenter that can have a chance to gloat and say "look at all these posts I made early on, I told you all but no one listened" in the scenario that the coin fails. I doubt he has any desire to actually protect newcomers' investments. He's brought up one point about GRS but it really doesn't seem like a huge dealbreaker to me (considering other "instamined" coins that have done well already).
On another note, I've been voting consistently at Mintpal for this coin, even if there is no realistic chance of actually being listed anytime soon. If even one other person notices GRS' consistent rise in the voting list then it is worth it.