Originally Posted by
pstravels
it may be worthwhile for any members who live in a college dorm and don't pay their own electricity costs. i know individuals who did this 2 years back. But stopped long ago due to difficulty. but again, the biggest issue is the down time waiting for return and uncertainty. Not worth it in my opinion. I would't take out/float between a number of cards a loan (especially at cc interest rates) in such a volatile venture.
The method that OP described doesn't involve any type of additional electricity cost, since it doesn't require actual equipment to mine bitcoin Instead, you pay a "share," if you will, that's hosted by someone else and the you get a % of the earning, by buying (with a credit card) and selling those "shares" (cloud miners).
But it looks like they are not selling miners anymore...at least not in stores where you could pay with a credit card, just Bitcoins.