It's important for me to note that I am doing most my updates there. There's a few different reasons why I've chosen Inkbunny over FurAffinity and i'm going to outline them.
1) It just plain looks better. 2) Its faster, all the time it is truly faster. 3) Freedom to post what I want, when I want. 4) It's administration has been actively nice to me. 5) FA is already inferior technologically in nearly every way to IB. 6) I like Inkbunny's logical layouts of function. 7) FurAffinity has not advanced, added any new functionality, in at least 2 years if not more. 8) In stark contrast, IB has an API that allows you to expand it how you want, let alone what they do on their own.
The only thing FA has going for it is a massive population.
When I first got on FurAffinity it was in objection to Livejournal going all to hell and monetizing pretty much everything. This started as a place to just journal, and honestly, past some of my commissions being put up here, its all its ever been. But damnit, Inkbunny actually makes me more creative. I've been writing more, and i've been writing with people on IB.
Back in my day there was this computer called the Amiga. It was multimedia before the term was even coined. It was technically superior to any other computer around it. Stuff like 4 channel 14 bit sound, and 4096 colors, before anyone believed such a thing could be possible. But we are not using Amigas today, we are using Windows. That's because people primarily used PC compatibles, even though in the days of the Amiga and first Macs, they were primarily character based and had at best 16 color graphics. People used PCs because everyone else did, not cause it was BETTER.
Since looking over that whole thing in the 80's, it became one of my principles that i'd never stick with a platform just because it had the most users. I'd use it when needed, but it wouldn't be my primary platform. I still have that principle to this day. Accept it folks, if both IB and FA were opening today, with the functionality they have right now, and no more users than the other, NOONE would pick FA to be on. They'd all be on Inkbunny.
FA is the Windows of furry sites. And IB is the Amiga. FA is ugly, clunky, but everyone uses it and you basically have to, sometimes. But IB is beautiful, its fast, its superior, but its not got a big chunk of users.
So what can one do? Only hope that people actually start moving over to IB. FA needs competition to motivate it to become better. The admins are riding the inertia at this point. They're big, they're popular, I don't think i'll comment on whether they run the site properly or not. But they are behind IB in terms of being a BETTER site. Way behind.