I see where you're coming from, but the game is a lot different than before. Before the Mumbad cycle, I didn't notice a lot of people quitting games on Jinteki or OCTGN, but afterwards, especially during flashpoint, there just doesn't seem to be a whole lot of point to continuing a game unless you're in a tournament. Even then, you might just know you don't have any viable outs, because you know your opponent is going to put forth at least the minimum amount of effort necessary to make the right plays. If an ABT goes bad, eh, it happens. If you get your source of economy oppressed, or you face an ice that you just can't do anything about realistically on all servers that matter, it's time to start a new game.
Also, done match ups are just basically impossible at this point, if your opponent has a good start. Did Andy just Career Fair/Temujin, Desperado, Laundry, Laundry a server first turn? Your Corp deck might not be able to gain the economy needed to complete if you know there's a security testing coming soon and you're playing horizontal. If you get midseasonsed, and you don't really have a way past resistor, you should probably scoop because you're just wasting time. Most of the time, I scoop because I know my deck can't do a certain thing it needs to do. I might be able to score a win against a player that doesn't know any better, but what's the point?