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It will make the site less enjoyable for its current users, but it may pick-up new users who like the other kind of content more.
pursuit of "being right" is usually not compatible with pursuit of logical truth.
Pressing someone to show how they're right can lead them to discovering new things that might change their opinion.
How so? Doesn't the desire to know what is right tend to lead to the pursuit of logical truth?
Yes. However the desire to know truth is different than the belief that one is right. My observation is that there are some users who are so convinced in what they already believe that they do things to manipulate the argument maps such as reporting "fallacy" for things they do not agree with, etc.
Thinking an argument is right or wrong doesn't stop people presenting their arguments and honing their critical thinking skills.
If you aren't enjoying an argument maybe it's because you aren't open-minded enough and think you're right.
Hey stop it :P