Do you recall whether the post said he had tried DE himself or not?
On Day 5 of humaworm my urine had a strong swampwater/tadpole odor. After my first day of DE (HW day 17), my urine has the same smell, only stronger. I've only ever smelled this awful smell twice. Generations of farmers and pet owners might be onto something after all.
If you decide to try DE in addition to humaworm, I would recommend starting slowly. I took 5 teaspoons of DE over the course of yesterday, and wasn't especially happy with the level of die-off symptoms, mainly racing heart and intense thirst after a day of drinking almost twice my normal amount of water. My die-off symptoms with HW so far have been comparatively mild.