I hate the way they handle images. I was browsing kbin on my phone, and they show images 3 or 4 times as wide as tall. They put a tiny little thumbnail of the original image that fits in there, on a background of a blurred version of a strip of the image. It looks awful, and you can’t even click on it to see the image. You click once and it takes you to the thread, and you need to click a second time to see the image. Then back a couple times to get back to where you were.

tl/dr, kbin had me first, and I left because I didn’t like the UI.

for some reason

I joined a bunch of instances (including kbin) with a bunch of different usernames, and have mostly stopped visiting kbin. The default browser interface isn’t as good: no collapsing comments, unintuitive displays of what magazine/community you’re on (thread links weirdly prioritize telling you which instance hosts the community rather than which of that instance’s local communities it is), etc.

This UI/UX stuff matters, I think. After all, a big part of the reddit migration was prompted by users being forced off of their preferred interface.