But most people are not alcoholics, and are capable of having an occasional drink. Social media could also be like that.

One reason I do not wish to close my Facebook account is for the groups and events. Facebook Timeline is not something I look at daily, but rather once or twice a week, to find upcoming events I might be interested in, particularly ones in which people I know have already expressed an interest.

When being on Facebook becomes an activity in itself, then I think it becomes problematic.