This week I achieved the longest rep grind in game. You might be asking what it could be, and here is the answer… The Black Prince. Ever since MoP questline was remove for the Wrathion, you couldn’t farm rep with The Black Prince in an normal manner, you have to farm the world boss in Timeless Isles for 500 rep per kill, which take about 82 weeks from 0 neutral to exalted.
With this rep under my belt, it leaves me with no more reps to farm. 104 factions at Exalted.
You Da Man!
Grats! What a horrible grind.
Dang nice, congrats
I guess time for blizzard to correct this oversight now.
How do you kill that which has no life
You don’t sit at the world bosses all day wait for weekly reset. On every Tuesday, you just go to Timeless Isles and spend 15 seconds there and forget about the rest of the week.
Timmy!! You go bro! Amazing stuff for sure!
I hope now you can find some other long grind to keep you busy, but this is WoW so you’ll find one soon enough 
oh wow you even did bloodsail buccanears lol
Eh… why?
I mean, um, “gratz”.
Geez. I though the panada king on the timeless isle was bad.
Congratulations.
Gratz most oh most insane err dedicated one.
So do you have Insane in the Membrane? I didn’t think any rep grind in this game would compare to that…
Good gad, you do. A tip of my wolfie head hat to you, good sir.
If you weren’t around in MoP, this is waaaaaaaay worse.
GRATS!
still working on this one…what a loooooong haul…
I thought the Mogu on the Isle of Thunder gave this rep, also.
The reason I say this is because I took a break from the game in MoP (I still regret this decision, but my mother had just died)
I had reached Revered with the Black Prince and so, when I returned toward the end of WoD, I finished up that rep via Mogu.
Wow, that is a bit crazy!
Gratz.
Now it’s RNG for you.
Congrats my tiny gnome friend!
I got that sometime before BFA.