Carpe Diem: send a pm to your opponent, and ask them in the comments in the game .. most will resign after you ask them

Hrqls: Yeah, I certainly could, but I don't feel strongly enough to bother with that most of the time - just enough tonight for a small rant on the boards instead. :) And in this particular case, it's someone with in-game comments shut off. I feel better now anyway. :D

Hrqls: That is if they do not have the message box cancelled.

Carpe Diem: Yes I agree with you on that. So when I have that situation I resign and explain why.

Carpe Diem: I think sometimes opponents try to see how many moves in a day they can make. Even a losing move/game counts as a move made. 

Carpe Diem: it's OK to resign! [,,,] why drag things out?

It might surprise you but for some people, it's not. They'd rather play the loss than resign it. It may or may not be related to suicide versus natural death. ;o)

Another possibility is that the person thinks that they're doing you a favour by giving you the satisfaction of the final, winning, move. I do know that I sometimes feel robbed of that minor pleasure when someone resigns close to the end.

A third possibility is that "mathematically eliminated" does not always occur to the non-mathematically minded.

A fourth ... an opponent might be resentful of the loss and dragging it out to punish you.

The most likely, I would guess, is thoughtlessness or mindlessness; the force of habit.... The game appears, the player moves, on to the next....

Clandestine 1: I especially hate being resigned on in the Dice Poker games. Several times I had managed to get 'Values in all Boxes', and my opponent resigned two moves before the end, denying me the achievement.

But generally, I agree.
If the game is mathematically lost, you should resign. There are other sites where this is implemented (the game just ends), but it is not trivial to code that for each game.

Aganju:that’s a good point. Some people collect Achievement points whereas others have no idea what they are. 

playBunny: good points :-)

against most opponents it's usually point 3 or 5 ... but against you, from now on, it will be point 4 :-)

Hrqls: against most opponents it's usually point 3 or 5 ... but against you, from now on, it will be point 4 :-)

Lol. Then I shall make a point of seeking calmness and tranquillity of mind.

playBunny: lol ... or visit me on jijbent.nl ;-)