After clicking on the "To attain Gold Status you need an aditional"-link from my account, I was taken to a page explainging the pro's about Gold membership.
There I read the following:
You will collect a bonus of 50% BA Miles whenever you fly with British Airways or Qantas.
This is in addition to the cabin bonus you earn while travelling in World Traveller Plus, Club Europe, Club World and First.
So, instead of 1 BA Mile for every mile flown, you will earn 1.5 BA Miles* enabling you to enjoy reward flights faster.
*When you fly on a discounted economy fare, you'll earn 25% of the actual miles you fly, plus your tier bonus.
Shouldn't this now be two miles per mile flown in any Economy fares?