It would be incredibly helpful to have multiple different feeds within a task - one just for comments/emails, and the other for "activity" that shows everything else that changes or happens within a task. The combined feed gets so clogged up and you have to scroll a lot if the task has a lot of history and all of the "activity" is minutiae that would be better served in a secondary feed that can be accessed as needed but isn't the primary feed. Comments and emails should be the main feed.
Thank you for your consideration!