I think there are people here responding about how good hunting log exp is and they haven't actually used it in a long time. As the state of the game is CURRENTLY - there is no reason to do hunting logs. They are not good EXP, they are not "noticeable chunks" anymore. A singular FATE in N.Than that takes 2 minutes to complete is worth more accumulated EXP than the entirety of the Rank 4 hunting log - and takes about 1/80th the time to do.
Hunting logs were relevant *slightly* for the FIRST class you get to cap, even then this was before the updated Armory Bonus. The time/money it takes, even with teleporting and mounting everywhere, is simply not worth it. Even for world exploration, the way MSQ pre-50 works now, the idea should be to do MSQ exclusively and ignore things that are "time traps" like hunting logs.
I think those of you whom are claiming it to be a good source of EXP, should start on that low level job you have, and make a real/up-to-date comparison between hunting log EXP now and all other forms of EXP (outside of Combo Bonus Grinding which is just pitiful on its own). You'll see that Hunting Logs are a waste of time and resources.
Also, to those of you saying; "They were for CLASSES not jobs!" - really? You did your rank 4 and 5 as an ARC/MRD/GLA and not as BRD/WAR/PLD? No, you didn't. You did them as a job as soon as it was possible. Oh by the way, Traits and pre-30 skills are also "for classes" yet they managed to fit them all into the new Jobs didn't they?
There is no point at the current state of the game to prolong the amount of time it takes to get to 50. The MSQ is still the threshold that needs to be passed for first-time 50's. After that is complete there is no reason to make leveling take significantly longer or neuter EXP income sources just because it used to have value. It does not anymore, and should be updated to be relevant. We don't need more outdated systems that get left in the dirt.