Learn by Doing was a perfect system which rewarded people by boosting only the skills they bothered with.
This incentivised mining, farming, looting, and fighting. And they removed it. Utterly senseless to take away one of the best things that they have ever created, something which; had people played with friends, created a truly biased character build and genuine rpg like environment with your doctor, your fighter, your looter, your miner etc.
Each with weighted speciality, and minor skills in other areas.
Although you could in theory max everything out, it just made so much more sense like that. Much better than this idiotic version that is being pushed onto us - learn by reading 100 copies of the same magazine.
Don't be surprised when the zealots strike and you are metaphorically publicly tarred and feathered foe your heretical and blasphemous appeals to the old development gods