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UID:pretalx-2026-3VPFVH@conferences.acspri.org.au
DTSTART;TZID=AEST:20261126T141500
DTEND;TZID=AEST:20261126T143000
DESCRIPTION:Research on online communities shows that horizontal social con
 trol contributes to a sense of community that is important for sustaining 
 these spaces. Through such control\, users regulate one another’s behavi
 or by identifying or criticizing norm violations. While these practices ca
 n strengthen a sense of community\, they also raise concerns that heighten
 ed sensitivity to others’ judgments may discourage participation. To exp
 lore how social control shapes participation in online communities\, this 
 study focuses on call-outs as a public form of norm enforcement through wh
 ich users identify a user’s behavior as a norm violation and invite othe
 rs to judge it.\n\nFMKorea\, one of the largest online communities in Sout
 h Korea\, provides a “Colosseum” category where any user can post call
 -outs in the politics and current affairs forum. These posts appear alongs
 ide ordinary posts\, state a user’s username or ID\, and cite their post
 s or comments as evidence of norm violations\, allowing others to assess t
 he cited behavior and whether the call-out is justified. \n\nSuch call-out
 s may provide a pathway to influence within online communities. By publicl
 y pointing out perceived norm violations\, call-out authors act as informa
 l norm enforcers and then become more visible within the community. Conver
 sely\, influential users can easily be call-out authors drawing on their e
 xisting positions. To explore this interplay\, this study examines longitu
 dinally whether users’ positions in each network influence their subsequ
 ent call-out activity (influence process) and whether their level of call-
 out activity shapes subsequent changes in their ties within each network (
 selection process).\n\nFurthermore\, call-outs may affect users beyond the
 ir authors and targets. When users observe those they interact with engagi
 ng in call-outs\, they may recognize that they\, too\, could become target
 s\, encouraging caution in posting and commenting. Alternatively\, interac
 ting with call-out authors may give these users greater confidence to expr
 ess their views. This study therefore examines whether ties with call-out 
 authors inhibit or facilitate audience users’ subsequent activity.\n\nWe
  constructed post–comment (net_P) and comment–reply (net_C) networks f
 rom non-call-out posts and comments to distinguish users’ influence in a
 ttracting attention through posts from their influence in engaging others 
 in discussion. The analysis included 117 users over three waves\; tie form
 ations/dissolutions ranged from 209–238/201–245 in net_P and 162–177
 /117–153 in net_C. “Colosseum” posts were excluded from both network
 s and used to measure call-out activity as a behavioral variable. A stocha
 stic actor-oriented model (SAOM) analyzed influence and selection processe
 s while accounting for interdependencies between the two networks.\n\nPrel
 iminary findings suggest that higher indegree in the post–comment networ
 k significantly increases subsequent call-out activity\, which\, in turn\,
  significantly increases the likelihood of receiving replies in the commen
 t–reply network. In addition\, ties to call-out authors significantly de
 crease subsequent commenting among audience users. However\, the standardi
 zed mean net upvote score (upvotes minus downvotes) received per call-out 
 post was not significantly associated with subsequent call-out activity\, 
 nor was call-out activity significantly associated with the average call-o
 ut activity of users they interacted with in the comment–reply network.\
 n\nOur findings suggest that call-outs may enable influential users to con
 vert broad attention gained through posts into direct interaction\, becomi
 ng more deeply embedded in the community’s relational structure. Meanwhi
 le\, call-outs may impose participation costs on audience users and constr
 ain discussion. This study deepens our understanding of how horizontal soc
 ial control interacts with power relations to shape the distribution of in
 fluence and patterns of participation in online communities.
DTSTAMP:20261013T065834Z
LOCATION:MacCallum Room
SUMMARY:Whose influence grows\, and whose voice grows quieter? The relation
 al dynamics of call-outs in an online community - Ho Jun JOO
URL:https://conferences.acspri.org.au/2026/talk/3VPFVH/
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