factsplaining
Factsplaining is when a person tries to sound fancy and smart, but they’re just a regular person who got too much coffee and decided to argue with you online.
'Your post is wrong. Also, I’m a factchecker. Also, I have a degree.’
‘You’re wrong. Finding: Untrue. Result: You’re dumb.’
DM: ‘Your opinion is invalid. Also, my opinion is valid. Also, I’m right.’