As the title says, please allow for "commenter" permissions on Smartsheet reports.
Not really sure why it's not an option, but currently, only "viewer" and "editor" is a sharable permission for Smartsheet reports. Commenter access is available on the source sheet of the report, however, there are times where the source sheet is not shared w/ the user and requires them to comment on certain lines on the report (shared in the sense that they're not using it, but it is shared so the data on the report is still visible to them.
This would be a huge quality of life increase.