Sustaining open-source software (OSS) requires effective practices for evolution and change management. In OSS projects, evolution is largely driven by feature requests and enhancements proposed by diverse stakeholders. These requests are often discussed across multiple communication channels, particularly community forums and issue trackers, where stake-holders negotiate intent, clarify requirements, and coordinate development. Despite prior research on OSS forums and issue trackers, we lack an empirical understanding of who creates and maintains links between forum posts and tracker issues, and how these links support clarification, feedback, and coordination throughout feature request lifecycles. To address these questions, we conduct an in-depth case study of Moodle, a widely used open-source learning management system. Our study combines (1) an empirical analysis of cross-channel trace links between Moodle's community forum and its Jira issue tracker, (2) semi-structured interviews with developers, and (3) semi-structured interviews with forum participants. Our results show that cross-channel traceability is rare: only 818 of 23,169 (~3.5%) feature request issues in Moodle's Jira link back to a community forum, and authorship differs by channel, with developers authoring 52.8% of tracker issues, while forum feature requests are predominantly authored by users, and only 230 linked pairs share the same author. The qualitative findings further reveal that the transition from forum posts to issues is largely ad hoc, with limited tool support and unclear role ownership, and that users often experience the process as opaque or weakly responsive.

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