I am your witness for today, please take a seat and prepare yourself for the ride!
I also run a Hive witness and both run so far without missing any blocks. Your votes for my witness on both chains makes a lot of difference, as it helps me to have more time to dedicate to interesting blockchain developments, such as work on blockchain tools and e.g. what I work on with https://whenwhere.cf and https://localprayers.net (location based social network stuff).
What I work on won't necessarily be limited to Blurt and Hive, I am also interested in e.g. IOTA and I might launch some stuff of my own. I also write on http://bogbook.com of which I have my own instance running on https://bogbook.interskri.be and I am thinking about reworking that technology to be combined with other blockchain tech e.g. for things like encrypted chat.
My main interest going forward is working on ephemeral blockchain-like systems, that is systems that are meant for information that should not stay around as long as most blockchain stuff does. I think having an ephemeral system available opens up a whole new realm of possibilities. Feel free to contact me about any of these things e.g. on Discord or here in the comments!