Abortion of games

I have seen many live games aborted, only for the aborting player to issue a new challenge (or two!).

Why do so many people abort live games? Do they always want to play against opponents of a certain strength? Is so, they should set up their filter and challenging arrangements to exclude the players they don't want. Or is there some other reason? Could someone please tell me.

Me too i'm against abortion. It's morally wrong and unjustifyable.

Chat is not the issue - I always leave chat on, but I may choose to ignore intrusive chat. It occurs to me that a player might not want to play against certain openings, which is against the spirit of the game: Just wait until I meet them across the table!