It's not bad if it's put into good use. But if it's used for gambling, that's how the worse part starts. And this isn't just a tale and it is really happening.
Yes, if borrowed money is put into good use then nothing is wrong in borrowing but if it's put into gambling then it's not right use of the borrowed money. Gamblers these days don't really care about losing even borrowed money, and surely they can sell most household items and even their bodies to fulfill their urges.