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2025-08-01 08:15:51

Exploring Left-Wing Extremism on the Decentralized Web: An Analysis of Lemmygrad.ml
Utkucan Balci, Michael Sirivianos, Jeremy Blackburn
arxiv.org/abs/2507.23699

Exploring Left-Wing Extremism on the Decentralized Web: An Analysis of Lemmygrad.ml
This study investigates the presence of left-wing extremism on the Lemmygrad.ml instance of the decentralized social media platform Lemmy, from its launch in 2019 up to a month after the bans of the subreddits r/GenZedong and r/GenZhou. We conduct a temporal analysis on Lemmygrad.ml's user activity, with also measuring the degree of highly abusive or hateful content. Furthermore, we explore the content of their posts using a transformer-based topic modeling approach. Our findings reveal a subst…