As @LibreNyaa said, they're looking at starting their own Mastodon instance. It's always disappointing to me how these larger FOSS orgs have such delayed/low interest in decentralization. I'd love to see @mozilla start their own PeerTube and Pixelfed instances as well. I've offered to host their content on TILvids but have never heard back (love that @thunderbird chooses to call our instance home though, shout-out to @killyourfm !)