The difficulty went up a little when there were several votings for things other than the usual liquidity pool grants. Some motions had unusually high share days such as
suggesting that some big amount of shares came out from sleeping to vote. [edit to note: Not necessarily specifically for the motion in the example. it's possible that all motions in this period had greater share days % than blocks %, if the holder(s) of aged shares felt s/he might as well vote for all motions s/he supports when not sleeping.]
Now the difficulty is taking a nose dive to 0.00025266. My shares are finding record breaking number of POS blocks. Is it because those voting shares go back to sleep again? Huge amount of shares stop minting and go to exchanges before buy back?