Lots of large 1000 coin (masternode) sales. I also sold mine a while ago, because my masternode kept saying "watchdog expired". Very annoying and not worth my time constantly monitoring. I was using GIN to host my MN, so maybe its their problem, but either way, very annoying and likely others have had the same issue and just abandoned the hassle.
MANO is exceptionally difficult to keep Masternodes runninf. Not sure why. Pool I mine on runs many many different masternodes (over 400) and the MANO nodes are the only ones that are a constant struggle. They are about to remove them from the shared MN offerings actually. I think this is a problem with MANO and not elsewhere. Would like to see them resolve this issue asap
The watchdog status is related to sentinel, which Kryptus touched on in the last announcement (below):
"After being targeted by someone who activated sentinel on his MANO masternode in order to take advantage of a known Dash vulnerability with the intent of getting all rewards, it took us only 50 minutes to port sentinel to MANO's blockchain and install it on all our platform hosted nodes making the attackers work worthless, subsequently we released am automated script for masternodes hosted on VPSs to install sentinel and continue to show the Enabled status."
The script is available on Dwigt's github at link
https://github.com/Dwigt007/ManoMasternodeSetup . If you install this on a clean VPS you will have no issues. If you do encounter a watchdog status, it will change to enabled within an hour or so.
All hosts that are on the Mano platform currently have been up for some time new without any issues, which I expect will continue once the updates are completed and it reopens for new deployments.