I have been addicted to my computer because of my kind of work. I thought it was normal and never had time for social activities nor communicating with friends and loved ones for a considerable length of time. A friend pointed out to me on one occasion that I valued my PC more than life and my living depends on it to the extent that someone might even die beside me and I wouldn't notice.
That statement made me understand how my addiction has distanced me from people, even those I loved, I also lost my girlfriend in the process when in my mind, I was securing the future, little did it occur to me that I was destroying the present and possible future with my dispensation. Over addiction even to the right course, is still very detrimental. I learned the hard way.
I believe it's a different thing if it is related to your job or profession because in that case, you are compelled to stay on your computer because otherwise you won't be earning money and that is another problem. However, a person, even if they work at home and on their computer, should have some work-life balance because if you are working all the time and not giving any time or attention to people close to you, you might lose them because of them and the relationships will start to shatter slowly.
I know this because I'm in the same field, I work online, so I spend a lot of time on my laptop sometimes and this usually creates problems for me because I don't get to spend much time with my family which is very important, but I try to keep my work hours separate now so that it doesn't affect my personal life.