Instagram Bios as Gateways of Virality and Influence: Signaling, Visibility, and Engagement Among Brazilian Sports Journalists

In ecosystems of algorithmic visibility, Instagram bios operate as high salience microdiscourses of self-presentation and signaling. We examine whether observable bio attributes are associated with visibility and interaction among Brazilian sports journalists. We analyzed 151 public Instagram profiles (≥100,000 followers) and extracted bios and profile metadata via automated collection. Bio attributes (length, emojis, @mentions, hashtags, location, informational cues, and external links) were related to followers, average likes and comments, and engagement rate (primary outcome) using Spearman rank correlations under conservative interpretation. Emojis and mentions were near universal; links were common; hashtags and locations were rare. Associations were small and exploratory: personal information correlated negatively with followers; hashtags correlated positively with likes and comments but relied on five cases; and references to other platforms correlated negatively with engagement. Overall, bios appear to function mainly as signaling infrastructures, with any performance effects likely indirect and mediated by content practices and platform exposure within this ecosystem.