Justbrowsing, I'll leave it to the mods to speak on behalf of SR and its policy against dispensing anything that could be interpreted as medical advice. Save to say it's a sound policy because to do otherwise would be inappropriate and unethical. Far from ridiculous.
Regarding supplements: There's equally ample reason to ask that members not offer advice on them. When we think "natural" or "herbal," it sounds very harmless. Actually, supplements can interact dangerously with other drugs, can cause adverse reactions and, because they're unregulated, there may be safety concerns. Any emergency room physician can vouch for all of that, based upon their experiences.
Here's some helpful information from the respected Cleveland Clinic:
Herbal Supplements: Helpful or Harmful?