It's different, it's not that difficult, only mildly annoying with some compatibility issues for platforms that are still basically in their alpha phase (like kbin).
It's incredibly annoying, and pushes people right back to centralized systems.
I just find ActivityPub kind of confusing. It works for Mastodon because that's user-centric, and most people only have an account on one site. But the same communities can exist on multiple sites, and it's confusing to navigate all of that.
This sounds like someone who hasn't even tried. These instances aren't difficult to navigate, they're just setup a little differently. It's like refusing to go to another country because they use metric instead of imperial (or vice versa).
First...Kbin's UI is IIRC currently in its alpha state. This isn't the finished product. Secondly, the UI is setup in the manner old internet forums used to be organized, with some additional tweeks to prioritize boosted and upvoted topics. Finally, this UI may not emulate Reddit in its final upgrade because it's a different kind of social platform.
I'd just ask people to be patient. There has been a huge influx of users to kbin, and lemmy over the course of the past month and the people behind the scenes have been working tirelessly just to keep up with user/server demand.
Although I didn't use your app, Christian. The work you and other devs have done with your 3rd party apps for Reddit was outstanding. Good luck with whatever's over the next horizon!
Sorry things went sour with Reddit, and wish it could have been different.
I don't think it's a question of enough people ditching Reddit, but just enough to create and/or provide quality content.
And really that doesn't matter as much as participating in a platform that's free of all the BS Reddit evolved into. Fediverse has a platform free of almost everything long term Redditors came to hate.