I have some experience with world religions. I like to joke that I have had more religions than new cars, but i am not entirely certain where to place this "Vulcanianism." It certainly isn't the middle way of Buddhism, nor is it as ascetic as some forms of Vedanta. It has no focus on a deity as, for the most part, are the Abrahamic faiths like Judaism, Christianity, Samaritanism, Islam, or Baha'i. It certainly doesn't seem to be dualistic like Zoroastrianism (and there my knowledge of Zoroastrianism runs out of gas).
The closest I can come up with is as a non religious practice like stoicism, though in its religious attributes perhaps more like Jainism, though unlike Jains, Vulcans don't seem to believe in nonviolence.
Why hasn't some group attempted to live like vulcans? Or have they? Can it be done?