Re: Good reasons for virtual currencies.
"Online ads are extremely cheap."
They're an extremely cheap way of pissing off existing and potential customers. Don't believe me? Ask yourself why so many people run ad-blockers. Perhaps you run an ad-blocker; if so ask yourself why.
"It also allows advertisers to run many different campaigns at once targeted all over the place."
Are those the campaigns that try to sell you what you just bought?
Repeat after me: the only thing the advertising industry sells is advertising to advertisers.
Biting the hand that feeds IT
