disrespect

Recently Slayer said something about people should not be upset when being tbagged. His reasoning was that you got beat and got made fun of and you should learn from it. However, I disagree with him. I wanna hear your views. What do you think of Tbagging? Is it a sign of bad sportsmanship?

As we know, there are things that are general to any fighting game and also specific ones. And I just wanted TYM community to tell what is considered as a "disrespect" in terms of MKX in particular and in terms of any fighting game in general.