That MainStreet article is pathetic. Here's the paragraph Consumerist quoted:
Net result? If you bought $1,000 in coins on your card and then immediately paid it all off, assuming you have 2% cash back, this means you just made $20 or more for only a few minutes of effort. In addition to that, you might also have accrued 1,000 points or air miles. The Mint gets its new coins in circulation, and you get a sweet reward -- everyone wins, except the credit card company (that's a change, isn't it).
Credit card companies? They win - that's been discussed here plenty.
$20 for a few minutes of effort? Takes a bit longer.
ALSO getting points or air miles? Show me the card with a 2% reward AND miles or points.
Here's the full article link:
http://www.mainstreet.com/article/sm...am-scam?page=1