Fortunately, due to the relatively small community, MWF is not large enough to attract the attention of unfriendly parties on the internet.
The hosting company replied, stating the reasons for the recent outages as:
i) The server was undergoing a long RAID rebuild and ran into some issues causing the machine to reboot.
ii) Following that they had to perform emergency maintenance and swap drives on the server.
iii) They claim to have resolved the issues with this server and hopefully things should revert to normal from now on.
Let's keep our collective fingers crossed.