for example - did Staker continuously adjust his fill-up tables which (we hope - they must) compensate for evaporation for temperature?
Obviously he did. He said he did, and he said the waterline did not change. When he deliberately lowered it 2 ml and then raised it 2 ml, that caused errors in calorimetry. If he had not adjusted the fill rate every day to make up for changes in electrochemical power and temperature, it would have changed several milliliters per day. You can't miss that! It is certain he would have seen it, and adjusted for it.
He said he based the daily fill level on the current. That is to say, on Faraday's law. He said that worked. The only question is, did he also compensate for evaporation at high temperatures, where it makes a significant difference. The answer is yes, he must have, because otherwise the water level would have fallen. What you have suggested is a just-so story --
There was recombination, which raises the water level.
But at the same time there was evaporation, and the evaporation exactly compensated for the recombination, which is preposterous.
It is impossible to measure the effect of evaporation during calibration, or predict it based on 220 year old physics. It is impossible to separate out the effects of recombination and evaporation, even though they have different causes and the causes are well known and have been for 200 years.
Staker forgot to take into account the evaporation. He noticed the water level was falling more than Faraday's law predicts, but he thought, "oh well, I guess there is no reason for that, ho hum" because that is what all experimental scientists do. They ignore the instruments and they fail to understand grade-school level physics. Because they are all idiots.
This is highly improbable. But so is everything else you say, which boils down to assertions that calorimetry does not work, x-ray film does not work, tritium detection does not work, and the laws of thermodynamics have been cancelled. You are the one making radical assertions and claiming the textbooks are all wrong. As Fleischmann said, we are painfully conventional people. You are rejecting all of established science. We accept it.