I think someone is addicted to gambling if someone keeps coming back and cant control by other people and himself in playing gambling. Mostly a person who lose a big amount of money in gambling repent to do and play bitcoin but for an addict person he will keep coming back and back again in gambling. Maybe that person has a lot of money and he/she does not know how to spend it for it is many. Too much in gambling and in any thing is also bad. Being addict in gambling has a 10%  chance to make us rich and has a 90% chance to make you poor and take your profit away from you.