When it comes to doing any kind of research, I tend to be quite anal and detail oriented.
One of my cousins posted on Facebook about how our family descended from Royal Blood with various titles such as Dukes and Baronets. I had to tell her that, unfortunately, those titles are extinct because there was no male heir to inherit and, therefore, their family name could not continue down to our line. I'm thinking she may have confused our ancestors with unrelated others of the same name, e.g. not all people named "Bones" are related to each other. I don't think my cousin is very happy with me right now.
My stance is to verify before making such a statement, just like I learned in my Experimental Psychology class where it was required to rule out confounding variables by double-checking, triple-checking, and testing again to see if the results can be repeated.