Proofster, often referred to as the 'Source?' guy, is a satirical character that emerged from imageboard culture to mock individuals who demand academic citations for every claim made in an online discussion. Usually depicted as a smug, glasses-wearing variation of the 'Amerimutt' or 'Achan' face, the meme parodies 'I fucking love science' archetypes and performative intellectualism. It is a staple in internet discourse for highlighting the perceived absurdity of bad-faith skepticism or pedantry. The character effectively captures the frustration of modern social media arguments where common sense is often challenged by demands for 'peer-reviewed' evidence for trivial or subjective statements.