I'm not them, but sorting by columns, filtering, searching with highlights would be useful. Also, specifying the columns you wish to see.
After writing it down this sounds just plain spreadsheet operations, so the real value of such a tool would be to do all the above at the same time as watching changes.
There's also other things that would be useful. Like a feature to select multiple directories for watching. Live output to file in original format. Maybe also JSON for when you would use it from code, but that's maybe not that useful because then why not just use the API directly..
Perhaps some patterns for which ones to send as an audible system notification.