Exploring Left-Wing Extremism on the Decentralized Web: An Analysis of Lemmygrad.ml

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Hauptverfasser: Balci, Utkucan, Sirivianos, Michael, Blackburn, Jeremy
Format: Preprint
Veröffentlicht: 2025
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author Balci, Utkucan
Sirivianos, Michael
Blackburn, Jeremy
author_facet Balci, Utkucan
Sirivianos, Michael
Blackburn, Jeremy
contents 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 substantial increase in user activity and toxicity levels following the migration of these subreddits to Lemmygrad.ml. We also identify posts that support authoritarian regimes, endorse the Russian invasion of Ukraine, and feature anti-Zionist and antisemitic content. Overall, our findings contribute to a more nuanced understanding of political extremism within decentralized social networks and emphasize the necessity of analyzing both ends of the political spectrum in research.
format Preprint
id arxiv_https___arxiv_org_abs_2507_23699
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Exploring Left-Wing Extremism on the Decentralized Web: An Analysis of Lemmygrad.ml
Balci, Utkucan
Sirivianos, Michael
Blackburn, Jeremy
Social and Information Networks
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 substantial increase in user activity and toxicity levels following the migration of these subreddits to Lemmygrad.ml. We also identify posts that support authoritarian regimes, endorse the Russian invasion of Ukraine, and feature anti-Zionist and antisemitic content. Overall, our findings contribute to a more nuanced understanding of political extremism within decentralized social networks and emphasize the necessity of analyzing both ends of the political spectrum in research.
title Exploring Left-Wing Extremism on the Decentralized Web: An Analysis of Lemmygrad.ml
topic Social and Information Networks
url https://arxiv.org/abs/2507.23699