Like any historical movement, there are just some people who are plain crazy. Some people call them fanatics. Ellen G. White dealt with her fair share of crazy during her lifetime. Check this out:
“We see monomaniacs all over the country. They are frequently sane upon every subject but one. . . . There are some who concentrate their minds upon one subject to the exclusion of others which may be of equal importance. They are one-idea men” (3T 33-34).
James White once wrote: “Fanatics, who regard themselves as reformers, are the very hardest cases to reform.”
J. H. Kellogg similarly noted: “Extremists are usually such through ignorance or egotism; they rest satisfied with only a part of the truth, and are thus led into error.”
Perhaps one of the craziest things I have seen so far while reading through the Review and Herald is about the “Clock-face Folly” in an editorial written presumably by Uriah Smith. He notes that a brother writes from Minnesota “that there are some there who think that the dial-plates of our clocks should be turned around so as to bring the figure 12 at the bottom and 6 at the top to correspond with the ancient Hebrew method of reckoning the hours, and also the modern names of the days of the week should be discarded; and that if we do not make these changes we have the mark of the beast.” Smith noted that those who had urged such views had been “turned out” from the church for “apostasy.” He added: “These are just the persons who we should suppose would go into such foolishness. The theory and the people are well mated. Do not disturb them” (Review and Herald, Aug. 8, 1878, pg. 56).
Ellen G. White gave some practical advice to make sure you don’t go nuts (she was such a sensible woman!):
Don’t advocate to others what you aren’t willing to practice yourself (3T 21).
Don’t seek to regulate the consciences of others by your own rules (3T 116).
Don’t get consumed into picking at straws (3T 312). Avoid a “spirit of faultfinding and murmuring” (3T 315).
Recognize that there are “persons with ill-balanced minds who imagine themselves very religious and who impose upon themselves fasting and prayer to the injury of their health. These souls suffer themselves to be decieved. God has not required this of them.” (3T 172-173).
Avoid extremes that will bring the Adventist message into disrepute. “Some among us have been ever ready to carry matters to extremes, to overreach the mark. They seem to be without an anchor. Some have greatly injured the cause of truth” (3T 315).