I think that's a weird bar to set, especially for one of the richest and most powerful people on the planet. Sorry I don't have any urinalysis results to cite, if I did I would!
When the king goes mad from drinking too much lead, the right response isn't for the populace to finger wag people suggesting it might be lead poisoning.
It's a weird bar to set that it's reasonable to speculate on a stranger's medical history with no supporting evidence
Given that the author clearly wrote it's a speculation, I don't see a problem here. It's low probability, but it could be the case.
Ok. I speculate that you beat your wife. Still no problem?