Very good advice.  However, it is not the fact the he hasn't resigned the game tht bugs me.  It is the fact that he has repeatedly used vacation time to prolong the game and every attempt by me to report his behavior has been unsuccessful.  That is what has aggravated me.

By, the way, I completely agree with slow-playing if you know your opponent is vastly underrated.  Yesterday I lost a game against a 1600 rated player.  After doing some research on the player, I realized he is more likely a 1900 player and I just got "cheated" out of some rating points.  He is a better chess player than myself, but the system doesn't know that and so, it took 30+ points off my rating.  So, in our second game, I have told him that I will be playing very slowly so that his rating has a chance to rise to its more realistic level.

Well, tournament directors could remove him from the list of joined players before the tournament starts, couldn't they?  I have a tournament being delayed by this player as I write this, so I feel your pain.

 I realize it is exciting to finally finish a game, especially when you won, so you can see your rating go up. But cmon really? Are there not other games you have to play. Why do you care? Just play your other games, make your next move whenever he finally goes. This sounds rather childish.

(Not meaning to affend you in anyway, I'm just saying)

 Because it is vacation abuse!!!  You don't care about that?

ok bullrock, I looked at your opponent. Its  not your game that is forcing him to go into vacation time. It is his other games where he only has a few minutes causing that, and some of those games are very early in the game. So it is not him using his vacation time to avoid losing to you. So I wouldn't worry about. You've got the game won with 18 others in progress :) 

 Well, had this only happened once I would agree with you. 

Frankly I wouldn't care and keep playing other games; in the end you'll win anyway so, even though it could be vacation abuse, why being in a hurry to finish that game?

Hello, KB!  I agree that this site has less poor sportsmanship than others.  Also, I am happy to report that the game has been adjudicated by Erik.  I appreciate his efforts to rectify the situation.  Also, I appreciate everyone's comments. 

You've supposedly already won the game.  What's to complain about?  All you have to do is wait a little while for your rating to go up.

bullrock:

I agree 100% with your concept that your opponent going on "automatic vacation" on every move for 20-30 consecutive moves is very unsporstmanslike, especially in a lost position. Technically your opponent is extending the time limit on every one of his moves using chess.com's feature; he is getting an "extra undetermined period of time per move" handicap, at the cheap cost of reducing his "premium" vacation time. I am sure chess.com intended this feature has an occasional aid for the player that suddenly goes on  a business trip, falls ill, etc., and not as an artifact to capriciously extend the "time per move", keeping it up for 20-30 consecutive moves. In my experience vacation times are alloted in minimum units of days in all other sites that I have played, and not in chronic "last minute" open-ended vacation periods of minutes or  hours. The opponent has no idea when the "automatic vacation period" will end: the next hour?, 6 hours from now?, a week from now? I have this same exact situation with a very strong master opponent,who like myself has been around a long time in the old mode of correspondence chess and the new mode of web turn-based chess. This experience has been unique for me here at chess.com. All I can say is "shame on him!". He knows better. His game has been lost for about 20 moves, and he is just proloooooonging the game I suppose to keep his high rating, and also to annoy his opponent. In my long correspondence/turn-based experience I pretty much have seen many variants of extra-curricular behavior to annoy one's opponent.Some players exceel in finding these off-the-board annoying modes of behavior. The response to this unsporstmanslike behavior is to continue your game normally, make the strongest moves and "mark" your unsporstmanslike opponent as a non-grata chess person. Perhaps the chess.com directive will take some fair action, if enough of us on the receiving end complain that this "automatic vacation" feature (that is unique to chess.com's premium players) is used by one or more premium players as a subtle unsporstmanslike off-the-board chronically annoying weapon, artificially extending the "time per move" via the "automatic vacation" feature to the benefit of the "chronically vacationing" player (keeping up this mode for many consecutive moves) and to the detriment of the opponent who does truly follow the fixed time per move limit rule.

 chapo60, thank you for your post.  I agree that if the administrators of this site are alerted each time this situation occurs, then they will be better able to determine what, if anything, can be done to help reduce the future occurrences.