Hey! So I used to play on JP and one thing that I really liked about it was how the blocks were really organized. If I remember correctly, The first 10ish blocks were for people doing "normal" quests, the next few were for "hard", then "very hard" etc. etc. There were also designated blocks for people who were just hanging around in the casino or people who were recording videos.A block I especially liked was "Expert Block". To get into this block, players needed to clear the "Heaven and Earth" extreme quest. This essentially forced players to get better weapons and units so they could clear it. This made XH EQ runs much more efficient as well.
If this were implemented again, it would make players (especially low level players) have an easier time finding a group for Urgent/Emergency Quests. Having expert block back would also be a great escape from bots spamming chat since they wouldn't be able to get into them. This is just a small quality of life thing, but I do think it would be a great thing to include in a future update.
TLDR; Change block names to difficulties and bring back expert block to:
Make finding parties for quest easier
Be in a block where bots can't get to
Make UQ/EQ runs more efficient