Well, that was fun
Woah that’s an odd take.
Classically, beards are literally the primary source of news and reliably true history and lore in societies that actually have bards. It’s one reason that they held a place of respect in ancient societies.
The bardic tradition has never been known for its accuracy. Most ancient folklore is clearly not true.
"Effectively, their job was to praise their employers and curse those who crossed them."
"Irish society focused largely on a fame or shame mentality. Which one you received largely depended on if the bard liked you or not, therefore, many people would go out of their way to please the bards in the hopes that they would get a song or poem composed about them."
I don't know where you're getting "reliably true history" from. Hell, even the internet, the greatest information tool the world has ever known, can't make the claim of "reliably true".