We have seen channeled Reptilian beings mention human volunteers who travel with them. Were they truly volunteers, how many have been involved this way, and what was the purpose?

As you saw intuitively, this was transport of humans against their will to their slave colony. This, as you have seen, is a large-scale program that has gone on for many, many, many, years and has involved millions of human beings. This is a travesty exceeding all others to date within Earth plane. It is not just because of the great numbers of people involved, but the sum total of the human suffering and general misery all live with during this experience. As you know, there are many family units transferred wholesale, and this creates additional tragedies because then family members are witness to the suffering of their fellow loved ones and this adds to their personal pain. So this being was not being forthright, but masquerading and misrepresenting the true intention of this interaction with humans. They were not volunteers, they were unwitting victims. There were some who were manipulated by mind control who agreed in a superficial way to accompany them on a journey, but this without any awareness at all of what they were truly getting into nor the duration of the involvement, which was essentially a one-way ride, so to speak. These humans are never returned. They are exterminated when they no longer serve a useful purpose.