The word does not appear, on the available evidence, to derive primarily from “Mamdani.” A later thread title explicitly jokes about “No connection to Mamdani,” which suggests that posters noticed the resemblance after the term had already entered board usage. The stronger derivation is morphological rather than biographical: “scam” was attached to a mock surname or clan-name ending, and then the board expanded it through related joke forms.

By June 2026, the term had clearly become productive slang within the forum. Posters were generating variants such as “Scamdadis,” “Scamdadim,” “Scamdadium,” “Scamilio,” and related constructions, which indicates that the word had moved from accusation to meme. Its later usage therefore functions less as a precise allegation and more as a flexible comic label for a conspiratorial or villainous imagined group.

The best conclusion is that “Scamdadi” originated as a local AutoAdmit/XOXO coinage visible by February 2026. It began as a hostile nickname built around accusations of scamming, fraud, and group conspiracy. Its resemblance to “Mamdani” is probably secondary, accidental, or later exploited by posters, rather than the main source of the expression.

(http://www.autoadmit.com/thread.php?thread_id=5877208&forum_id=2).#49961460)