You are probably right, but there are people just like him who really, truly believe in these things.
Nah, I don't think so.
The "OMG zealots kidnapping your children" FUD mostly comes from people who misunderstand FLOSS activists and what they are saying.
Most of us zealots want essential elements of computing to be available to everyone, including source code: infrastructure, operating system, standard tools everybody relies on, as well as anything that you have to use. In addition, most of us zealots are already happy if we have ONE FLOSS option for each of those, which is fully featured and can freely exchange documents with closed source applications: give me Firefox, KMail and LibreOffice, and you can keep Opera, Eudora and MS Office -- as long as we can all exchange documents without anyone being locked in.
In that respect, an optional game, that nobody really NEEDS, is a very different thing from an essential driver, or a web browser.
It's not free money, it's pre-ordering the game(s).
No, it's not like pre-ordering a game some weeks before release.
These people does not have any game.
Who knows, maybe there wont be any game?
Maybe the "developers" take the money and take a vacation to Jamaica to pay for blackjack and hookers?
Maybe they get bored and stop develop it.
Maybe they have some internal disagreement and the team dissolves.
Maybe one or more developers get hit by a bus?
Maybe one team member steals all the funds for himself or his gambling addiction?
Maybe the estimated costs are wrong. 10% of the things tend to take up 90% of the time.