people do 1 because it's just a rage quit really but you shouldn't really have a problem with that as you only have to wait a couple of seconds.
people do 2 because they're hoping you resign out of boredom and they win.
people do 3 because they're kids and it creates an excuse for themselves as for why they lost apart from that they're bad.
people do 4 to get 'revenge' after you beat them and calling you scared is a way to come up with an excuse for themselves so they think they're better than you..
I don't understand why sometimes my opponents do one of these things when they lose the game or are in a losing position :
1) They disconnect and don't come back.
2) They let their time run out and you have to wait sometimes several minutes for their time to run out
3) They insult you
4) They do one the things listed in 1 through 3 and then offer you a rematch. When you refuse, they insult you again or say that you are "scared"
I don't really understand why people act so passive aggressive when they lose. Don't people realize that that their own bad decisions are the reasons why they lose at chess ?