Really enjoying 5.2 so far. I'll agree that 10,000 plant fiber seem a bit much (not because it's hard to gather, I got about 2000 in 2-3 minutes clearing out for my starter farm, I just can't imagine ever needing that much for anything) and that the builder quest seems a bit out of wack with the others, especially given you need to master it to make cement.
What I'd really like to comment on, though, is the class paper fragments. I've gotten 13 of them total so far, and 5 of them were duplicates, and therefore, as far as I can tell, completely worthless. Was any thought given to allowing duplicates to be used for something (perhaps 2-3 can be turned into a different fragment for the same class, or they could be scrapped for blueprint papers)?