Yo!
Alright, for those who wanna take their time and do the ''Insane in the Membrane'' achievment, NOW is thee best time to do so. Why?
It's WoW's 8th Anniversary plus it's Pilgrims bounty.
Farming the pirates for Steamwheedle rep. or Syndicates etc. Anything that involves killing NPC's. You got a limited time to use these perks:
WoW's 8th Anniversary badge ( http://www.wowhead.com/spell=100951 ) +8% Reputation from kills.
The Spirit of Sharing buff gained from the bountiful tables ( http://www.wowhead.com/spell=61849 ) +10% Reputation from kills.
Also, be sure to slap a Guild Banner for another extra 15% rep. from kills.
Which makes it a total of 33% extra reputation gained per kill. Making the grinding 1/3 easier.
P.S. Humans who have Diplomacy get it stacked to 43%.
You're Welcome! <3