I am leading a team of contributors to the Graphene ecosystem of blockchains, collectively known as @agoric.systems. We are currently active as a witness on MUSE.
We provide a reliable consensus node, a reliable seed node, and have already put in many hours supporting stakeholders of MUSE with performing balance claims and Bitshares 0.9.3c wallet migrations, in order to access their stake. We have also helped the team at OpenLedger with some of their technical questions.
In the medium term we are evaluating moving our nodes to bare metal in order to further decentralize and create a stronger security and privacy story for our witness infrastructure.
upvoted :)