Is there a similar dilemma for comments? If you are in discussion (or argument) with someone online and they stop responding, is it because they have become con

Is there a similar dilemma for comments? If you are in discussion (or argument) with someone online and they stop responding, is it because they have become convinced? Is it because they have come to the conclusion that they are wasting their time trying to convince you that you are wrong? Did they get bored and wander off? Are they busy or go to sleep and might respond later? Did something happen to them?