Is Art of Living a cult, and is it a con?

This group claim to be a non-profit making company, yet they file tax returns with the authorities (not a requirement for a charitable organisation). It is a meditation based group, run by a man they refer to as “His Holiness”, the self named Sri Sri Ravi Shankar.

Criticisms on the internet (particularly on Wikipedia) tend to get removed very quickly by devout followers. This is one of those things where people are encouraged to pay a fee to join a group session where they will learn these secret meditation techniques which they must keep to themselves. Alcohol and smoking are not permitted. I think they engage in retreats also.

Is anybody here a member of this group?