~partypoints is nice, but it does not tell you what type, or where are your followers.
It could be useful for merc leaders, and even more for slavers, since slavers sometimes loose track of where all their slave are.
So if ~followers could result in something like:
Your followers are:
*Companion Mark
*Mercenary Joe
*Slave
*Slave
or maybe even include locations like:
*Slave (Tent:1)
*Slave (Base:NameOfBase)
And for ~slaves show the number of possible slaves you can have:
*Slave
*Slave
*Empty Slave slots: 2
that would be awesome.