Quick answer: Bug trackers with too many permission levels confuse contributors. A simple three-tier model (Reporter, Triager, Engineer) covers most studios.
Permission complexity is rarely needed. Three tiers is enough; documenting them is the work.
Reporter: submit only
Players. Submit reports; view own reports; that's it. No internal visibility.
Triager: read all, assign
QA, community managers. Read all reports; tag; assign to engineers; respond to reporters.
Engineer: edit assigned
Fix-and-close. Edit only reports assigned to them or their team. Visibility into all; edit only their own.
Document each tier's expectations
One-pager per tier: what they do, what they don't. New hires read; misunderstandings drop.
“Permission tiers are about clarity. Clarity beats granularity.”
Audit your tracker's permissions. If you have 7 tiers, you probably have role confusion. Collapse to 3-4; processes flow better.