Why are instagram, Facebook, and Twitter so damn addicting?

They're really not, whatsoever. In fact, very much the opposite to many.

The article starts off on the wrong foot and proceeds with personal observations minus collective experience.

Of course, certain people do get 'hooked', perhaps because most people don't think, and may be so inclined to become 'hooked'.

They’re not addicting. They’re a complete waste of time. That’s what’s addicting.

They are not. Simply believe this, and you'll be fine :)