An excessive use of exclamation marks is a certain indication of an unpracticed writer or of one who wants to add a spurious dash of sensation to something unsensational.
Okie, so I need to keep that in mind frm now on.
Well, everything written in this article is so true. But I guess the main reason for all this is laziness. I mean, how many people do u find who uses a capital letter after full-stop? Very few. (I dont either. Just started it recently.

) That's coz no one really cares whats online..

. Everything online has a
sab chalta hai attitude. So no one bothers.