If you don't have time to read an article you really need to organise your life better. Another fine example of laziness and stupidity and people pay for it - what fools.
I for one travel a lot and don't always have the time to read an article at the time; hence, apps like Instapaper are useful for quickly saving articles (I use it to read mostly case studies) that I can pull up on the airplane. Just because you see one functionality that you do not agree with does not mean that there aren't other uses that better suit others' needs.