Resigning right before you lose

A lot of people seem to resign right before checkmate. Is this good sportsmanship? Why not let your opponent have the satisfaction of that last move?

If the game is already won, the "last move" doesn't really matters, in fact when i see no way to avoid the checkmate i usually resign.

In other words, losing right before you lose. Why do they lose before they lose when you want the satisfaction of them losing?

If you play over or watch master and grandmaster games, they all resign before checkmate.  So yes, I would say it's considered good sportsmanship to resign early.

Satisfaction should come from winning, whether that be because your opponent resigned or whether because you actually mated him/her.

When I play over-the-board tournament games, all of my opponents resign.  I never mate anyone.

When playing online, the faster the game is over the faster I can start another one! 

You learn something new every day :p

I guess it's just me.

It is not that you want your opponent to not have the satisfaction of mating you, it is probably that you simply do not want to get mated haha

Most of people resign. But there are others that simply prefer to run out of time, or to disconnect. Those last 2 things seem a bit douchey to me.

Yes,  people who disconnected or run out of time on purpose is way more annoying.

The game ends when it ends. No use complaining about it. If you are in a clear winning position, enjoy it. If i want to surrender, it is my right. You can also resign whenever you feel like it.