In 2006-2007, E-gold was after by Chinese gov. as some bad guy developed ponzi schemes, named E-gold-invest. This ponzi scheme get hundreds of thousands people lost money.
Yes, you're all smart guys, who can distinguish between E-gold and E-gold-invest, Bitcoin/Bitcoin-ponzi-game/flexcoin,
However, I assure you that these ponzi stuff will do harm to bitcoin, just as E-gold-invest do harm to E-gold.