@Salt_ I'm guessing he gave advice on how to make it easier to read for adventurers, maybe more image and less words since hajime said (thought) "so many words"
@Salt_ It was hinted that no one is willing to buy his data because of the prejudice of "chicken" beast people are bird-brain and thus idiots so their data won't be reliable. However, Hajime (presumably) vouched for him to the guild (as part of his mission) and as an upper-middle ranked adventurer his recommendation carries weight and thus his data could be sold for the first time.