Nacht wrote:as a formula
Let LE be the level of the Quest or NPC in question
Let LG be the level a NPC, Quest, Hostile player turns grey given the players current level
Let RG be the percentage of the normally gained reputation
RG = max{100-(LG+1-LE)*20 , 20} for LE<LG
RG = 100 for LE>LG
When you are high level, you should gain less reputation for killing a low level mob or completing a low level quest.
The reputation gained gets reduced for every level you are above the "grey level" of the quest/mob by 20%.
Example: mob X gives 10 reputation.
Mob X is green, you kill it, you gain 10 reputation per kill of mob X (100%)
Now you level up, mob X turns gray, you gain 8 reputation per kill of mob X (80%)
You level up again, you gain 6 reputation per kill of mob X (60%)
You level up yet again, you gain 4 reputation per kill of mob X (40%)
You level up another time, you gain 2 reputation per kill of mob X (20%)
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The same should apply for quests, when you are high level (60) and you complete a low level quest (5), you gain less reputation.
Example is copied from wowwiki, I believe the quest in question is
http://www.wowhead.com/quest=3792/morro ... strongholdGives 25 reputation if you complete it at level 55 or lower (100%).
Gives only 20 reputation if you complete it at level 56 (80%).
Gives only 15 reputation if you complete it at level 57 (60%).
Gives only 10 reputation if you complete it at level 58 (40%).
Gives only 5 reputation if you complete it at level 59 or higher (20%).