Did someone just go through a first shift?eeeeeeeeeeeeh!!!! Yes i'm a therian! i just checked it out and i have wolf inside me!!! I AM WOLF HEAR ME HOWL!!!! ARROOOOOOOOOOO!!!!
Of course, now that you know that werewolves really do exist (at least in a metaphoric Obi Wan Kenobi "Darth Vader betrayed and murdered your father" kind of way), and that you're one yourself, it makes you wonder what else is out there?
Therianthropy is a reinvention of an old idea, actually. It's a contemporary Internet movement, but its based on principles that are part of the human collective unconsciousness. That's why it keeps cropping up de novo--that is, it shows up in people who've never heard of the idea before. Most therians don't look to join the therianthropy movement; we find out we're therians when we discover the movement, because it's kept going by others like us.