Hard not to take negatively. A mod saying they basically don't trust plugins because support might be dropped doesn't say much for plugins or my work through six major versions of OMV. OMV has dropped support for things like iSCSI (iscsitarget was official OMV) and if OMV dropped support for ext4 and xfs, isn't the same fear you have with plugins dropping support?
I didn't say I wouldn't trust it.. but plugins get dropped, it happens. Volker has dropped several of the "official" ones that were around in the beginning... so this isn't a criticism at all on you. You have to decide where your work is worthwhile, and that is going to mean that sometimes stuff has to be dropped. Nobody is denying the work you've put in all these years. I consider OMV dropping support for iscisi, ext4, xfs, etc.. exactly the same actually. It's all just part of moving forward. Volker dropped (or is dropping) support for them, so I moved on to whatever he's pushing next... in this case it happens to be btrfs.