Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello!

Do ranks decrease if I don't get any honorable kills one week? Does it only decrease if I get more than X honorable kills? I am unsure if I should kill everyone on sight, or leave them alone to save my rank this "leveling week"

id like to know this aswell. do you lose rank if you have under 15 honor kills per week or does it stay where it is?