Actually, there is a medical disclaimer that can be found in the FAQ. This seems to cover your backs already:
"Medical Disclaimer The contents of The Tao Bums website, such as text, graphics, and other material located at thetaobums.com and its subdomains or aliases are for informational purposes only. The content is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of Content found on the Website. If you have a medical emergency, call your physician or health provider immediately. The Tao Bums does not recommend or endorse any specific third-party tests, physicians, products, procedures, opinions, or other information found on the Website. Reliance on any information located on thetaobunms.com is solely at your own risk."
Now, you can add a specific warning to the welcoming message when new people join about energy techniques used without a teacher. But this won't reach lurkers who avidly browse TTB in order to find descriptions about energetic practices.
My online 2 cts worth of the day, I can now return to real life