They do. You can contact En Kompis Kompis, http://enkompiskompis.se/,
[email protected], those are the guys running quitter.se.
I've contacted them via a written letter after quitter.se was offline for
most of last December/January and they (Hannes) replied that they had some
hardware issues (they use hardware raid, so that's of their own doing) which
they say is now fixed.
Given that even afterwards their uptime is sporadic at best, we contacted
them again and asked if we could help out but didn't get an answer. Perhaps
they will consider it if more people chime in.
Long story short, we created a GNU social instance ourselves and "moved" our
account from https://quitter.se/vikings to
https://social.vikings.net/vikings. This is pretty easy accomplish, so I'd
like to encourage everyone who has the means of doing so.