I used to put 'Good game' or some such (not 'gg' though, I learned how to use actual words a while ago) on someone's wall when I lost an interesting game, but I never bother nowadays. Hardly anyone ever replied anyway (not that I wanted them to, but it shows it was largely pointless). Now I just play chess.
Positive feedback challenge!
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Hello, today I would like to call on the chess.com community to do something very simple that could make a big difference in the culture and enjoyment of chess. My simple request is to leave a positive comment on the profile of your chess opponents. Whether they won or lost.
Too often I play a game with someone polite and I check their profile only to see 3 or 4 accusations of cheating. When will this stop? You can help counteract this childish behavior by leaving positive feedback.
Even if your opponent does something annoying like play out a long drawn position or force you to mate him with time running down, I ask please resist the temptation to complain on his profile. It makes you seem like just as poor a sport.
Winning and losing is not as important as learning and enjoying the game itself. What can contribute to the enjoyment is if most people were polite and good sports.
So I challenge you to leave positive feedback on the profile of your opponent every chance you get and spread some positivity.