Well, I will unlock the topic simply to clarify a few things
1. Andy has absolute right regarding how crafting points in tanning used to count ! As I happened to advance at least 2 or 3 heroes in tanning I know very well that you used to get crafting points no matter whether its 2x or 3x - you were getting the points based on the extra amount of leather you crafted. Just like andy explained - you were getting 26 CP extra for the amount of "critical" leather.
2. As a happened to be the person who wrote the F.A.Q. I can wholeheartedly tell you that the part you are quoting refers only to primary professions. Things in secondary professions were quite a bit different before and even different now after a few changes.
3. I have myself tested to see if indeed some changes in tanning are implemented and after crafting with a hero who had 352 CP in tier 4. I crafted 25 very heavy leather with X8 multiplier. For some reason, after the start of crafting, his CP changed to 344. After crafting immediately, this is the final report :
Craft quantity: 25
Crafting Time Multiplier: 4
Critical craft x2: 5 Times
Critical craft x3: 3 Times
Total quantity crafted: 36
Now, the hero has 355 CP in tier 5. To me at least, several things are evident from this and Andy's report :
1. There was obviously an unannounced change or bug fix or whatever you want to call it in the principle on which the crafting proficiency was calculated for tanners. Nowadays, if obviously gives you only the CP from the critical crafts achieved in the respective X2 or X3. IT WAS NOT like that before.
2. What I find funny is that you can even tell it was different before. A common visual bug that existed and still exists (when crafting resources and items) is that after you start crafting, it automatically takes out from your current CP, the CP you will actually gain when crafting this item or resources ! After the crafting is done, its all back to normal and adds the CP correctly to those you had before. BUT you can see from the example I gave - this crafter had 352 CP and went back to 344 - so lost 8 CP. WHY if he gained only 3 from crafting the X3 critical leather ? Its very simple
Because before this unannounced change, this crafter would receive 8 CP - 3 from the X3 and 5 from the X2, so this small reminder of how the CP were calculated still remains to prove mine and Andy's memories
3. I personally believe it was a valid question. Something was changed in the game, nothing was said about it. Its natural for people to wonder.