Good evening, Isaac. I've read through the feature requests concerning finding new discussion board posts that have been made over the past five years (since 2011).
I've noted that an easy method to identify new posts embedded as replies within earlier posts has never in five years been adequately addressed.
I would like to propose that all new posts be assigned a special character that is easily searchable using a ctrl-f search OR, and this will be easier, placing a blue or green floating button next to each new reply so that they immediately stand out when a faculty member or fellow student is scrolling down the message board. Canvas does this to good effect.
How soon could you have something like that in place for me and the Populi user community?