This apparently isn’t an issue that a lot of users run into at least according to the ranting I’ve done elsewhere on the internet. I’ll try explaining this as best as I can.
Skip down to the TL;DR if you’re good sans explaining.
In previous versions of Acrobat Pro (eg: 9) it was possible to set a filter for the comments in a document (eg: Status = None) and then as you are going through and marking the comments as "Completed" the list of comments would automatically hide the completed comments for you.
The current version (and last few versions) of Acrobat Pro (or DC as they call it now). Do not filter live as you change the status of a comment. You have to clear the filter and reapply it if you want to hide markup you’ve already dealt with.
This is extremely annoying when you’ve got hundreds of comments to go through. Once again I refuse to believe that I’m the only one in graphic design or desktop publishing who could benefit from having this feature.
TL;DR: Is there a good none-Adobe PDF reader/marker that will let me see comments and live filter them (hide them) based on a change in status from “None” to “Completed”.
Not surprising that PDF comments were being used as a task list/tracker. In the same manner, Google Docs supports "@-mentions", "assign to", and "resolved" functionality for comments.
All you can do is send feedback to Adobe somehow and hope they add that feature back in. In the meantime, best to find an alternative workflow.
Yeah. Surely they’ll listen, one of these years… 🤪 Might be a while yet now that they’ve got their fancy new “AI” toys to play with.
Always looking for an alternative…