I mean chess.com should have system in place if opponent doesn't make his move within let's say 8/10 mins system should abandoned the game.
What if it is a critical moment in the game? When I played in USCF in 30 min time control I took 10 minutes to move. Same on chess.com. Because the system does not know if you are losing or winning what if you are calculating an attack? This would abandon games that are unclear and in progress.
After a loss, easiest way to gain revenge is to let the clock run down. Since this gets the wind up many a player, it's an effective strategy.
Then again, lots of noobs do not know about having to resign, still others just don't care. Who was it that said
"That's life (that's life), that's what all the people say
You're ridin' high in April, shot down in May
But I know I'm gonna change that tune
When I'm back on top, back on top in June
I said that's life (that's life), and as funny as it may seem
Some people get their kicks stompin' on a dream
But I don't let it, let it get me down
'cause this fine old world, it keeps spinnin' around
I've been a puppet, a pauper, a pirate, a poet, a pawn and a king
I've been up and down and over and out and I know one thing
Each time I find myself flat on my face
I pick myself up and get back in the race
That's life (that's life), I tell you I can't deny it
I thought of quitting, baby, but my heart just ain't gonna buy it
And if I didn't think it was worth one single try
I'd jump right on a big bird and then I'd fly
I've been a puppet, a pauper, a pirate, a poet, a pawn and a king
I've been up and down and over and out and I know one thing
Each time I find myself layin' flat on my face
I just pick myself up and get back in the race
That's life (that's life), that's life and I can't deny it
Many times I thought of cuttin' out but my heart won't buy it
But if there's nothin' shakin' come this here July
I'm gonna roll myself up in a big ball a-and die
My, my!"
Why do people get booked for speeding on the roads then grizzle that the police are out to get them.You ndo the crime you do the time.With chess has roger ot got some magical way of knowing who is being a jerk or knot.
What is the big deal ..i use my time how i wish when i play a game i dont BULLY a player to hurry up because they want to be somewhere else
I kinda like to just sit there for 14 minutes and admire my winning position. Just kick back & grab a cup of tea with a smug grin on my face ... :-D
The OP is absolutely correct. Folks who stall liike that are poor sports.
But it is just a game. When it happens to me I just watch NCIS reruns.
Chess is a game of stragities and tactics so when you feel your opponent is stalling it all part of the game.If you dont like it then maybe you its not for you
Thanks for sharing your thoughts.
We have long time control like 45/45 even 90/30 if you play that format and opponent just walk away. I don't think anyone would wait until game gets over.
If I am winning or there is play in the position, I will wait every time. chesstempo.com or text on my phone. If an opponent wants to run their clock down to a minute. I'll run mine down to 5. I can get about 10 chesstempo problems in in 30 minutes. Chess time is chess time.
Also, I think if you are a paid member you can run multiple games, so there is an alternative if you are getting a rash of sore losers.
In blitz I've had players who are obviously stalling in a mate-in-few or huge material imbalance. I figure that is a good time to be helpful, so I point out my mistakes or give them the best lines for the remainder of the game.
Not in slow time controls though. That would be rude ;)
If your life is so busy that you can't afford to humor someone who's obviously lost to you for a few extra minutes in exchange for getting a higher rating on chess dot whocares, then maybe you need to schedule your life a little better.
I usually play slow chess game preferably 30 mins. My opponent had about 23mins on his clock and he just left the board without resignation.
And I have about 14 mins left so I had to wait 14 mins to win the game.
The behavior you describe is a violation of the Fair Play policy, yes.
You can report people for "stalling".
Game Destroyer and some others
Players have a right not to tolerate sore losers
maybe chess.com should make a list of such sore losers so we can know not to play them?
And if you want to play them--you can?
Once i fell asleep in a 30m game. there was 6 or 9mins left when i woke up. It was barely early middle game but played fast and won it. Still got reported and received a message from system for abusing fair play policy 
As long as a player's reasoning can't be ascertained, noone can say for sure if he is "stalling to make opponents wait unnecessarily" or not. He could be calculating a 14-move variation, if he so wishes. It's up to him how to spend his time, that's why it is his time.
The best solution in such cases is: play a time control that isn't longer than the time you really intend and agree to spend playing (which should be so anyway).
I would say it is often clear in a number of cases that people are stalling as they are clearly losing and there is nothing in the position worth thinking about.