Denying the holiness of the Koran or the prophecies of Muhammad is straightforward apostasy. But Zarqawi and the state he spawned take the position that many other acts can remove a Muslim from Islam. These include, in certain cases, selling alcohol or drugs, wearing Western clothes or shaving one’s beard, voting in an election—even for a Muslim candidate—and being lax about calling other people apostates. Being a Shiite, as most Iraqi Arabs are, meets the standard as well, because the Islamic State regards Shiism as innovation, and to innovate on the Koran is to deny its initial perfection. (The Islamic State claims that common Shiite practices, such as worship at the graves of imams and public self-flagellation, have no basis in the Koran or in the example of the Prophet.) That means roughly 200 million Shia are marked for death. So too are the heads of state of every Muslim country, who have elevated man-made law above Sharia by running for office or enforcing laws not made by God.
Yet they can use Western cell phones, computers, weaponry, vehicles etc.
Yep, no hypocrisy there.
Mohammed lived the perfect life and all Moslems must strive to live as Mohammed lived. Anything that is innovation in manner of life is therefore apostasy. There are passages in the Koran forbidding alcohol and Mohammed did not wear leisure suits. He also is assumed to have had a beard. Men just didn't shave in the desert. Hairless faces are a characteristic of living in towns, or is genetic. Chinese Moslems are permitted to not have beards though other hirsute followers of the Prophet are uncomfortable around them. A Moslem acquaintance years ago even said that most Chinese cannot be real Moslems because they cannot grow beards.