Question: Since Baha’i teaches progressive revelation, what is Baha’i's take on new religions such as Scientology? –Sidfaiwu
Answer: Good question. I’ll leave you with this. Baha’u'llah talks about revelation, but he does not rule out inspiration by founders of movements who were "tuned-in" to the spiritual currents of the day. While there is nothing about Scientology, a quote about Joseph Smith might be indicative:
"As for the status of Joseph Smith, founder of the Mormon Faith, he is not considered by Bahá’ís to be a prophet, minor or otherwise. But of course he was a religious teacher sensitive to the spiritual currents flowing in the early 19th century directly from the appearance of the Báb and Bahá’u'lláh and the Revelation of Their Messages of hope and Divine Guidance. In this respect you might find chapter ten in the late Hand of the Cause George Townshend’s book, ‘Christ and Bahá’u'lláh,’ interesting."
– Compilations, Lights of Guidance, p. 511
Baha’u'llah also allows for the presence of what we today often call "destructive cults". To this end, referring in general to the unity of religions Baha’u'llah says, "All of them [religions], except a few which are the outcome of human perversity, were ordained of God, and are a reflection of His Will and Purpose." (The Proclamation of Baha’u'llah, p. 114)
Baha’is are encouraged to think of religions such as Sikhism, Mormonism, Confucianism and so forth to be in the former category, not the latter. In practice, Baha’is are still enjoined to "Consort with the followers of all religions in a spirit of friendliness and fellowship," (Baha’u'llah, Tablets of Baha’u'llah, p. 22) regardless of its origin.