Eric B spent several years blogging about the possible revaluation of the Iraqi Dinar and the Vietnamese Dong. Before he stopped at the advice of his attorney, he spent a great deal of time debunking rumors from people (commonly referred to as pumpers) who profit in some way from the sale of these currencies. Claims that it has just happened or that it's about to happen are made daily and these pumpers will put as many people on a fictitious emotional roller coaster. These people need to think for themselves and Eric B tried to provide that for them. The tone is informal because of the target audience.