That's wonderful. I'm happy to see that Twitter responded to you and #savetwisst.
Twisst is such a valuable service. Perhaps you could think of ways we can help. Whether in technical support/design, monetary help, whatever, I'd think you'd have lots of support from the community.
In fact, it would be AWESOME.
I think it's time you set up a donation page. If it's going to be "like work", then let's make it worth it.