I would say (in no particular order) that the CDDL license is not innocent, ext4 is good enough for many usages, cost ? ZFS is RAM hungry ...
but ZFS is well present where it means most (NASes , Proxmox , backups to tell some)
And yet, if you didn't do all that steering, etc... this wouldn't exist. So let them "be" little sore ppl.
ps. What I noticed is that those who created lots of projects before they'll be doing lots of projects after LLMs. Those who used to whine before, they'll keep whining after...
Shipped, thanks to you: the copy-on-write room now opens its sources in a side panel. Your comment went from here to production in about four hours. Others rooms to come. The rendering is far better!