Qawhoo

Would be interesting to allow swearing in the discord, so long as it is inside the ||spoilers|| so that only people who want to read it will read it.

Allow mobs attatched to the player through leads to also teleport with the player. /spawn /tp /home /f home etc.

A command that prevents non-staff commands from tagging you. For those who get annoyed by useless tags. Non-staff commands as in RPs, and /gives. Maybe make it person specific.
This would also prevent the bypass of blocks using BigBro.
Yw, Hyper.

Allow for the creation of custom inventory during a /duel to allow people to be more creative.
Basically the person who makes the invite selects custom rather than the other game types then they put items into an inventory as they see fit. Once done, and the duel is accepted, both players spawn with the custom inventory that is created. Not seperate inventories, the same inventory the inviter c.. See more

Multiple Itemfilter presets.

If this isn't a thing, it would be pretty cool to have it. /itemfilter 1-5.
It's a bit tedious to have to go from using one when mining to using one when pvp'ing because you have to undo everything you put into the filter for mining then put in everything for pvp, and they you can filter for pvp rather than mining. It would be nice to just have a pres.. See more

Bigbro sends a list for name history in pms.

Make an auto ban system auto bans people who connect to the server using the same exact IP address as a previously banned account.

Pros:
Slows alting process for hackers.
Slowing the alting process would free up time an energy put into reports on a "new hacker" that is really just an old one.
Eventually hackers would run out of IPs.
Frees up time put into investigating possible ban evader.. See more