The truth is no one REALLY knows, just has their own theory. I think it's a moot point. We know mercury poisons us. We know candida in the fungal form poisons us (whether binding mercury or not). They both need to go! :-)

Your linked info states this: "But if mercury methylated within the body there would be no need to use ALA or any other chelating agent, as methyl mercury readily crosses the blood-brain barrier and cell membranes so the brain and other organs would clear themselves of mercury once exposure
was ended."

How do you know when mercury exposure has ended to test this theory? Mercury exposure (and other heavy metals, especially aluminum and barium which is in the air) is part of the industrial civilization of convenience that we have unwitting built.

Another link that references the other opinion states this, which I have never considered before:

"Exert: Bacteria and Yeast
When people have mercury Amalgams or just has elevated mercury in their body, the friendly bacteria (probiotics) will convert the mercury into methyl mercury, which is at least 100 times more toxic than ordinary mercury. Research shows that oral bacteria, yeast and probiotics all methylate mercury, so you should minimize any contact
between the bacteria and your mercury.

Even the good bacteria are producing methyl mercury?? That sucks!