[Elte]

I don't think it's about reaching conclusions; I think people just don't like hearing bad news, much less bad news about things that they regularly participate in. We say "don't shoot the messenger" for a reason - it's just much simpler to shoot the messenger than to consider the message.

What I'm personally always worried about is to what extent I might be doing it myself. It stands to reason that these people themselves don't believe they're engaging in unacceptable behavior, after all.