Ah to break the silence... here just a quick update from my server auto-reset experience.

That works perfect!!! No runaway CPU usage anymore.
CPU usage stays at around 10% on all nodes.
Instead weekly I choose to go more agressive with a daily reset.
The reason for daily: That way I don't have to check daily because it will reset anyway before any Pose can ever accumulate till up to a kick out.
Yes with that frequency it might hit 1 or 2 server reset quorum/pose collition a year a node..(guesswork. it could be caclulated) but that's nothing to worry about.
Pose is only a problem if your node does stay off for a few hours.
Observed no Pose till now or missed it in case there was already a collition.
I am very happy with that solution.

can you keep us posted on this? I might add it to the dash masternode zeus since it does seem like the dashd has a memory leak when left running for weeks at a time.