Original title: Endorsement Without New Evidence: How Sequential Voting Inflates Mandates in Online Community Governance
Zihan Chen, Lei Nico Zheng, Di Zhu · September 2026
When online groups vote in public, a landslide win looks like strong proof that voters carefully checked the candidate. However, that margin can make independent scrutiny look much larger than it really was. Researchers studied Wikipedia administrator elections to see how people vote over time. They created a metric called vote-text divergence. This measures when someone casts a firm vote but leaves only a brief, deferential written explanation. They found that divergence climbs for voters who show up later. As past comments pile up, voters stop bringing new evidence because earlier comments already covered it. This happens most with peripheral voters. Even so, these votes do not lead to worse administrator activity or survival, meaning huge margins inflate the look of consensus without picking bad leaders.
Imagine a group of friends picking a movie. The first few people give real reasons—this one is too long, that one has bad reviews—but later people just say 'I'll go with everyone else,' because the discussion already feels settled. The final vote looks like a landslide, yet most votes added no new opinion. In this paper, the same thing happens in Wikipedia admin elections: later voters write thinner, more agreeable reasons, so a big margin can overstate how much independent support there actually was.
Communities that treat large vote margins as strong mandates may be over-reading how much independent scrutiny a decision actually received. Late voters in Wikipedia admin elections tend to add deferential endorsements without new reasoning, so the final tally can look more consensual than it truly is. The result: public tallies can mislead even when the elected officials turn out to be fine.
The abstract doesn't say whether the effect generalizes beyond Wikipedia admin elections or whether it causes actual harm. Divergence did not predict worse post-promotion outcomes, so the concern is about perceived legitimacy rather than administrator quality. The study also does not test whether voters are consciously deferring or simply being concise.
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Endorsement Without New Evidence: How Sequential Voting Inflates Mandates in Online Community Governance — Zihan Chen, Lei Nico Zheng, Di Zhu
Abstract licence: CC0
Explanation generated by Synthesis from the abstract — it is not the original paper. This is a preprint, so it hasn't necessarily been peer reviewed.