ridiculous ore/herb rates

Why do the ore rates seem to be so extremely low and out of place? Copper can be found in 0-30 level areas, tin ratio is so freaking low and it feels as if silver doesnt even exists.. back in the day you found in every cave some ore for the specific mining level.

meanwhile herbs are spawning like weed in some areas (alterac) and auction house prices are nearly the same as you get form selling the herbs to npcs because there is so much.

did nobody complain about it before or is it so hard to fix it so they wont?

Cheers