Nice to have some rare titles not only as a markers of progress through the game and RP-parts, but also as a basement of the reputation system. Now I will give some examples:
Edited by Orion_89 on February 27, 2021 6:47AM
— Monster Hunter: week overland monsters don't atack you
— Aliance war rank: slight addition to the AP gaining.
— Noble titles: reduce bounty for your head when you commit a crime.
— Hero titles: slightly increase amount of gold you found in chests (local titles may increse gold in the local chests, and Hero of Tamriel spreads to the all vanilla overland)
— Grand Master Crafter: reduces required amount of gold tannin by 1.
— Daedric Lord Slayer: week daedra in Coldharbour don't atack you.
— Savior of Nirn: reward for completing Dark anchors increases.
— DLC titles: make increases in it's own zones.
— Dungeon titles: increase chances of dropping rewards.
— Battlegrounds titles: slight addition to the AP gaining on it.
As you can see, such system may add motivation to complete zones and activities at 100%. And not only that, also need for changing titles will appear depending on what are you doing right now.
Your thoughts are always welcome in the comments!