Pink bean is the cutest boss. Though, I always found it amusing how the majority of the boss fight is spent killing statues rather than the bean itself.
I agree with this. It's always upsetting that I have to skip out on events with untradeable chairs because my set-up inventory is already filled with them.
I also like your idea of the character specific storage. It's frustrating to have to constantly carry those untradeable items but not wanting to drop them because of collection reasons.
1. It is not just a matter of level that determines how easily a character can clear a boss - funding is the major factor in most cases. A problem with many bosses is that there is such a large disparity between "normal" and "chaos" that often makes normal to be too easy and chaos to be difficult or impossible.
2. The level burn you mentioned was only an event, so players do not always get to speed through the dungeon levels. Without the burn event, a player can clear most of the low level dungeons without being over leveled. However, I do agree that there needs to be more high level dungeons, especially at 160+.
3. We actually had 2 iterations of PvP in the past. The first one was relatively balanced since funding did affect damage, but of course there were still some very overpowered classes. The second one was definitely unbalanced due to funding playing a role in damage. Even without including boosts from equipment, it will still be very difficult to balance classes since there are so many of them.