DSpace has a number of command-line tools which tend to be run periodically and all follow a pattern: visit all model objects of a certain type and operate on some or all of them. Converting them to curation tasks would centralize the "visit all model objects" logic, support common reporting, and make them available in the administrative GUI pages for immediate remote use.
A few tools, such as filter-media, when converted to tasks, could also be attached to workflows if desired, so that they run promptly when an Item is ingested rather than walking the entire database later.
Another (small) benefit would be to shorten the rather lengthy list of command-line tools. It might be well to extend the curate command to list the available tasks, since their functions would no longer be listed by 'bin/dspace'.
A preliminary list of tools to consider for conversion: