At the end of office hours today I mentioned wanting more of the issues and PRs to be labeled (@seph made a note in the notes about it), but it looks like only members with write access to the repository can label issues.

Github has a beta going on for

triage

and

maintain

roles that seems to give access to issue/pr management w/o write access: https://github.blog/changelog/2019-05-23-triage-and-maintain-roles-beta/