This place won't feel like home until I have a comments here, but Bumble doesn't yet have commenting support. David and I are working on it, though I don't know how much trouble spam will be.
If you want to try adding comments, you can fork the Bumble repo and have a go. (I forked it just now and can't work out how to unfork it. I am still a GitHub beginner.) To share your thoughts on anything on Katzenfabrik for now, you can email me or hit me up on Twitter if we're connected there.