I found some old screenshots I took when I first discovered this
ngl I've known about this for a few weeks now and just didn't know how or where to bring it up.
The screenshots I posted earlier were ones I saved just after I discovered this thread as I figured everything would get nuked.

"The devs are volunteers."

They did volunteer initially but usagi mentioned multiple times before channels got nuked that he doesn't take free work.

In a vc q&a one of the devs asked usagi about adding her bro to the team and usagi brought up having another person to pay as a potential problem.

One last thing. I believe all the of the devs are paid so it's possible they might not be able to legally comment on their personal feelings about the drama or exit immediately

The reason I included the first screenshot was to showcase usagis toleration of their behavior.
There was a ban wave due to the drama and bussy got banned in that I believe.
No confirmation on the reason why as usagi only hinted at the reason behind the ban wave but it looked unrelated to the slurs.

If anyone is confused in regards to the worst offender here.
Bussy was part of Usagi's old friend group and eventually got banned due to some drama. They aren't a part of the iisu dev team

It's important to note that I doubt any of the iiSU devs outside of usagi knew of this prior to it blowing up.

They're a mod.

They nuked the chats but I was able to save some screenshots of some of the other pretty terrible things in there.