Yeah, I feel like surrendering is bad, shows a lot about the characters of people I'm playing with. I (about 95% of the time) say no when a surrender comes up because LoL isn't checkers, it's chess - which everyone in this ELO doesn't seem to understand. If your nexus isn't destroyed, there's always a possibility you can win, you just have to hope your team can outplay the opponent and capitalize on a mistake.
If your Queen (inhib?) gets taken out early game in chess, you can still come back and win the game by taking their King (nexus?).
Also, saying it's GG when we're 5-10 minutes into the game (Stockings -_-). It's not over till it's over! :D