No endorsement of YTB but IT DOES EXIST. I live near it's "campus", know employees who work there, know private and not for profit groups who book through them.
That said, imo it's a pyramid scheme, as a percentage of the whole few reps make reasonable, life supporting, income.
Disclosure, I have owned shares but sold long ago when California filed charges. It was thriving somewhat as they were banking sign up and and monthly fees from new recruits by the thousands.