Today, the 'internet addiction' is a disorder; tomorrow, 'hobby addiction' is. Don't we already have enough things to blame childish behavior on, such as ADD?

Today, the 'internet addiction' is a disorder; tomorrow, 'hobby addiction' is. Don't we already have enough things to blame childish behavior on, such as ADD? (Not to say it isn't real, just that it may be a bit, say, over diagnosed...)