Based on what I've heard from kbin instance admins (especially jerry, the owner of fedia.io, where I usually post from when not dealing with errors), it's not an easy thing to keep running in its current state. I imagine if you instance hop sub-100 user kbin instances many of them will end up shutting down or having inactive owners.
For example, feddit.online is kbin instance #6 by user count (yet it's still <100!) and has announced they're shutting down in a couple of months: https://feddit.online/m/feddit/t/66403/SERVER-GOING-AWAY-ON-NOV-26th
To have a stable instance experience without going with a large instance you might have better luck with another AP platform as your home base, whether Lemmy or something else entirely.
https://infosec.exchange/@jerry/111235710730201071