people quits when they lose their queen

yeah... if u keep playing sometimes the opponent gets overconfident and eventually loses

the lower rated both players are, the better the chances are to still win after playing on.

If you reach 1400 and above it's kind of pointless to play on because you won't win this game if you lose your queen.

Off course the faster time controls are, the more one should play on as well

it depends where in the game we are. If its middle game or early, ill usually keep playing. If we are in the end game, its pretty easy to see when youve lost. If I see stalemate potential ill keep fighting.

someone once told me to do a daily queen sac in blitz games...even just for a minor piece or a rook...reason - it forces you to learn to play actively with your other pieces...you have to co ordinate your pieces to try and achieve something☺ dont worry about rating points...they mean nothing compared to what you might learn😉

Since two connected rooks are generally better than a queen, you shouldn't quit just because you're queen is off the board.  But if you have an 1100 or higher OTB USCF rating or the equivalent, if someone - even Magnus Carlsen - drops his queen and is a queen behind in material, you'll be kicking yourself if you lose the game!

I don't think the material scoring system is right on this one. In blitz games, I've found two rooks difficult to play and as soon as you split them up, the queen can find a way to fork them off. Without splitting them up, they can have a hard time maneuvering around if a pawn guards another pawn. In the opening or midgame I would prefer a queen, especially in blitz games where a knight is better than a bishop because he is tricky and can hurt your opponent's clock or make them blunder. In the endgame, the queen has to be constantly on guard not to get pinned or skewered but should be theoretically drawn. 

That's what I have tactics trainer for. I make sure to get in my moves each day to stay sharp and I've seen my game improve immensely from it. Really helps you approach critical positions systematically.

Its psychology easy to miss stuff when you have taken the opponents queen. and this is reason enough , in some positions, for the losing side to keep on fighting... looking for a  "swindle"

Since your rating is 951 yeah you should just keep playing. 

At my second OTB tournament, in I believe the first round, it was only 45 minutes into the round start. I looked at the board next to me, and one of the guys had lost a queen for a knight. 

After my game finished, about 3-4 hours later, I looked back and they were still playing, and I believe the game was somewhat close now! The guy who won the queen in the opening eventually won, but it definitely was not clean. This was an U1300 USCF section, btw. Many 1500 daily/rapid players are not 1300 USCF. 

To be fair, the position was very locked, and the player with the queen didn't know that he had to open lines in order to consolidate the material by trading some pieces off. 

if i lost my queen, i'd go look for her.