what kind of person spends virtually all their money on anything? 99 times out of 100 the answer is homeless. This person has to have 1) internet access 2) a computer 3) a place to plug both computer and miner in. They don't sounds homeless... so...
1) Teens and people in their early 20's.
2) People who haven't learned how to budget.
I bet there's a whole lot of people out there who blow all of their money on single purchases. Not everyone is an adult with solid understanding of finances and budgeting.
I've been witnessing this phenomenon for years. First, at the casinos, where folks on food stamps sell them for 70-80% on the dollar, to stick all the money in the slot machine trying to hit the big one. Now, I witness it first-hand at the convenience stores where they purchase a slew of instant lottery tickets and take a seat to scratch them off. Any winners, they trade them in more cards until there'll broke. In Sandwich, there are two business that have them new online lottery slot machines in place, and both have their six machines tied up all day till closing, with customers bitching at one another wanting them to get off so they can play, all within earshot of the customers that don't play the machines.
My two nephews, along with their Goth cronies, spend every penny they make on drugs, cigarettes, fast food, and gas for the car, enabling them to cruise at night to amass more stuff to be converted to cash so that they can start the entire process over again. They lie about why they're in dire straits so that they have a place to crash and shower and rip off even those who gave them that helping hand.