I agree with everything you said on a personal level, but I think you're committing the fallacy of false generalization.

You (and I) both place a very high value on truth over comfort. We feel incredibly uncomfortable -- perhaps even painfully so -- when we suspect that any of our beliefs might be false. Therefore, for us, finding out that a friend was lying to us (as well as to himself) is tantamount to experiencing a direct attack.

However, not everybody in the world is like us. Other people place a very high value on comfort and positive reinforcement. When they talk to their friends, they do so not in order to Bayes-adjust their beliefs, but in order to reinforce their feeling that they are valued, needed, and cared about.

Note that this does not necessarily mean that such people do not care about truth. They often do; but truth-seeking is not the reason why they engage in conversations.

So, for people who value comfort in their relationships, having a friend like moridinamael would be ideal. And I can't state with any amount of certainty that their worldview is inferior to mine.