Inventory space issues need looking at.

Either

1) Why have so many types of logs or upgrade materials. Why not just have one type, but increase the amount required for higher level gear.

(Added benefit, returning players wont have to start patch cycles from scratch if they retired with upgrade materials previously)
(Added benefit 2, veteran players still benefit from upgrade materials dropping in ancient content like crystal tower)

2) Why have things like clan logs in the first place? Why not just give a seal bonus when the Rank mob dies?