Same here; I just checked their stats and they're at 10k users so the application must not be too hard to bomb if the applicants put a little thought into it.
I'm hoping that kbin.social will be able to drop the Cloudflare protections that are breaking federation – imo, federation is the appeal of these instances. I'd love to be able to participate on kbin's threads from my Beehaw account, in the same way I participate cross-lemmy instances, but it's broken and that's sad. :C