Mastery rank 8 obtained today!
Learning the last BLU spell I was missing, Thrashing Assault, put me over the top. Finished Ebisu and Ebisu +1 quests earlier in the morning which probably didn't hurt either.
Final tallies were:
RoE: 1070/1075 (missing Escutcheon-related and Abyssea-Grauberg max fame RoEs - still on stage 1 of Leathercraft shield)
All missions to-date completed.
Quests completed: 1111
Titles: 955 (I felt this was a weak spot for me after browsing through this thread. Notably I do not have the Yilbegan title, which was the last VNM one that I couldn't get after 30+ kills so far)
Monstrosity Species: 93 (almost all are level 50-60 for unlocks - only a handful are over level 70)
Campaign Ops completed: 46
Incursion KI: 123 (barely did any Incursion - I was only ever there to farm Aeonic pop items for my linkshell)
Unique fish caught: 163
Playtime: 1553 Days
Master Trials: 2/4
All jobs 99
Jobs mastered: 15
110 Leathercraft/Fishing, 80 Synergy, all subs 70
All combat/magic skills capped at 99
Lu Shangs/+1 and Ebisu/+1 quests completed
Relic Weapons: 16
Mythic Weapons: 7
Empyrean Weapons: 7
Aeonic Weapons: 7
Ergon Weapons: 2/2
Meeble Burrows: Only did Sauromugue leg of this - was missing the four boss titles from Batallia Meebles
Chocobo Racing: Never touched this
MMM: Did not do much here, most of it was way back in the day. Have the first 3 titles from clears
Overall, it was definitely a grind but an enjoyable one at that. Running through the quests and different content that I had not seen was a fun experience. It's really crazy looking back, how much this game has to offer.
I still plan to hunt down more titles and knock out the last ~20 or so unfinished quests that I have, as well as various other things. The grind never truly ends.