Why do people say that not resigning is bad sportmanship?

He-he.

One time I very seriously blundered and ended with king against king+rook. My opponent has a lots of time, but did not remember how to mate with rook!!! The game ended in draw, he-he next time.

I played a game for my Club Championship where my opponent premoted two queens and my opponent asked if i wanted to resign i said lol we continued and i flagged him with a rook and king left :P he was soo mad XD

Did your mothers raise any normal Kid's.
#4 the arbitrator can not do anything if some one complains your opponent can take all his time to move. Just as you can look silly.

You can call the arbitrator but he/she will not do anything. I can ask the TD to come to my board any time I want but it does not mean they will do anything.