As a principal software engineer that works on Fuchsia, I can assure you that the project does not exist solely to retain me. :)
https://chromium.googlesource.com/chromium/src/+/HEAD/docs/c...
https://docs.github.com/en/free-pro-team@latest/github/creat...
https://docs.gitlab.com/ee/user/project/code_owners.html
It's not meant to be a place for developer bios. If for no other reason than one developer could appear in many OWNERS files scattered throughout a repo, or in multiple repos, and keeping the bio current across all of them would be a nightmare.