Not for nothing, but the first time I stumbled upon bitcointalk, I was blown away by both the stupidity and greed of a lot of its members, so this dude's comments don't surprise me in the least. Stupid for supporting bitcoin? Nah. Stupidity in other ways? Hell yes. And greedy? Oh my.
The fact that it is a public forum means that you also get a good representation of the avarage person in the world (atleast those that are interested in bitcoin).
This automatically means that you also get the stupid and greedy people.
The people that have stuck around here for two years during price declines, I would not call those stupid or greedy.