I check on my node periodically and noticed that one of the LQwD nodes had been down for just over a month so I shot off an email to their info address and within 12 hours it's back online! Even this medium-sized node runner appeared to have forgotten about one of their smaller nodes until I gave them a little prod :-)
Moral of the story: consider only connecting to nodes with some listed mode of contact in case you are starting to think about force-closing a channel with fees sitting where they are now!