I applaud your skepticism, though I do feel that having the source open does help make that harder.
Every time I see tinfoil references I often wonder if people realize the relation to tinfoil and blocking radiation or alpha particles, as they come in different sizes.
Hell people wear leaded vests at the dentist to block radiation from oral xrays.
Should we* start another silly club, Lead+Tinfoil? We all talk shit on the web but it seems like the majority is always the dumb masses getting scammed and duped and the weird guy in the corner gets ahead.