- A misinterpretation
- A mischaracterization
- Out-right wrong
I can at least forgive the first three ...if they're presented in good faith. However, many times, it seems like people are either presenting things as "facts" when, in reality, they're not - but they conform with an over-arching agenda the author is trying to support.
At any rate, when I see such "errors" - particularly when you can tell they aren't in good faith - it makes me doubt everything else in the list. The only saving grace of the other (now) doubtful facts is if I already knew them to be true and accurate (even then, if the errors and/or distortions are grievous enough, it will cause me to go research to verify that my prior understanding is correct or at least still valid).