So, I started a new channel on the Slack team - #diskdumping. Anyone already on the Slack can just join it, for anyone else - please let me know you want to be invited. Just reply here on the other forum thread that you want to be invited, or even poke us on twitter @demozoo.
The purpose of the channel is to discuss the dumping of floppy disks, and the best way to share dumps and collaborate on sorting and making the files available.
So if you have even the faintest interest in the preservation and dumping of demoscene-related software, please come hang out :)