Farming code?

I've always heard people say 'stop farming when farming code kicks in'
So I was wondering..what exactly is farming code? When you farm a particular zone too much, does that zone stop dropping items, or does it affect the whole map? And if my farming code does kick in..how do I reset it?
Thx in advance!

If you farm a particular zone, you stop to get drops after a while. I think I've heard people say that you don't get drops much anywhere if you farm enough, but I think that's a lie.

the farming code is this pop-up you get that looks like one of the tips you used to get when you first started your character. it just says that if you continue to kill just the first few mobs of a zone and then map back to town and do it over again, the amount of items you are getting will start to decrease.
only thing i've heard about resetting it is going and doing some quests somewhere else, maybe do some missions, after a couple hours i think it goes away.

yeah i got that one too, as leech says, go farm at another spot and try some time later^^

if u farm enough for that code to appear you need to stop and rethink your life
i
t takes alot for that code to appear...just leave and go back in a few hours