I know that all SE sites are based on the "Be nice" principle. I think this is generally a good thing.
However, the comments attached to one of my recent answers seem to suggest that the OP is more interested in Pseudo-history (i.e. answers that support their pre-existing agenda/opinion).
Now, I have no doubt that the OP would be upset if I expressed that opinion. So it seems I can't just say something along the lines of:
"You seem to be upset that I've pointed out the paucity of evidence supporting that idea, yet quite willing to accept uncorroborated allegations as evidence. Are you quite sure you're interested in the history, rather than Pseudo-history, surrounding these events?
without breaking the "Be nice" rule.
I'm relatively new to the site, but this can't be the first time this kind of situation has risen. Is there any guidance for "best practice" in these situations?