Steempty is one of the quietest witnesses I have researched so far. Perhaps the name is a clever double-entendre on “empty!
With a mere 118 posts to his/her name, Steempty prefers to work, vote, and resteem quietly behind the scenes. However, s/he is still out there somewhere, actively voting each day (or, at least, managing an autovoter).
Steempty's most recent witness log, linked below, contains an interesting case of disappearing logs and what passes as intrigue on servers these days.
Early on, Steempty wrote several tutorials for Steemit, including how to setup a witness node using Docker and how to setup price-feed scripts for witnessing.
Steempty continued to post consistently until approximately January of 2017, and then moved to mostly witness updates only. Oddly, in the last day, two rather well-voted (but payout-declined) cat picture posts have been added by Steempty. Perhaps this is a sign of Steempty's return to (relatively) more active posting.
Steempty holds 185,000 SP (an amount that has increased 20% over the last 2 months) and is NOT powering down.
Steempty’s Current Witness Update: @steempty/witness-update-friday-22-september-2017-disabling-signing-block-probable-hack-on-my-home-network-all-my-servers
Steempty’s Original Witness Thread: @steempty/steempty-witness-post
Fun Cat Post 1: @steempty/my-cute-cat
Fun Cat Post 2: @steempty/my-cute-cat-2