Humble Indie Bundle 4, which also supports charities like the Red Cross and Child's Play, has people abusing the system for grinchy gain. Here's how the scam worked: oogie-boogies purchased the bundle for a penny, then used the Steam codes from the bundle "to 'legitimize' automated Steam accounts in order to increase their odds of winning prizes in Valve's current raffle promotion."
"This is unfair to legitimate entrants and is definitely not what we wanted to encourage with Humble Indie Bundle 4," wrote organizers on the Humble Bundle blog. "It's a lose-lose situation for the indie developers, charities, Valve, and Humble Bundle."
New orders now have a required purchase price of $1 to obtain Steam keys. For those who can't afford the dollar (*glares at your $5 mocha*), a Steam key can be provided by contacting the support team and promising "not to resell" or "otherwise abuse it."
It's a fair compromise to a sad situation that shouldn't have happened in the first place.