When your quest log is starting to get a tad crowded and you'd like to work your way through, let's say, starting from the lowest level quests that you have, it might be cumbersome to find the particular nodes on the map when it's cluttered with the icons of 15+ quests in the same area, so my suggestion would be to add a feature which, if toggled on, would allow only tracked quest objective icons to show up on the map and on the minimap instead of showing or hiding all of them at once.

@BreakBB, I think this can be closed. Feature implemented in v6.7.0 ;)
@githubgavin2, in v6.7.0 there's a new option under the general tab to hide untracked quest icons from the map.