Sorry but no, under this guise any esoteric, homeopathic BS can gain ground. Effects of meditation, too, will have to either be objectively measurable. If they were not, it can be dismissed.
Any discussion board where the majority of users has a specific background or shared interest is likely to converge in their opinion on some issues, the echo chamber is simply built in.
You're free not to participate in a discussion you've come across ten times though.