Wouldn’t the hydrolysis of the water take energy that required fuel though? The claim seemed to be more that the water was the fuel so to speak, as in the same way that petrol is in current combustion engines.

My guess is they got confused with the concept of “flame wars” and “flaming” from forums. It doesn’t quite match their definition of “unwanted” messages exactly, but it’s not entirely far off either.

I was told a similar thing but the claim was that the person had invented an engine that ran on water haha.