This page explains WikiIslam's polices concerning honorifics and the reasons behind them.
Prophet, Christ or Lord
When discussing the Islamic prophet Muhammad, the first mention in an article and its conclusion should begin with the capitalized qualifier, Prophet, i.e. "The Prophet Muhammad". The same applies to Jesus or Ganesha, i.e. "Jesus Christ" or "Lord Ganesha". This is because we need to be clear that we are discussing the religious figures named Muhammad, Jesus or Ganesha, and not some other individual living in the Middle-East, South America or India.
Objections and Answers
1. "Muhammad is not our prophet so we should refer to him as the Islamic prophet Muhammad."
In the interest of fairness, we would also have to refer to Jesus as the "Christian Christ Jesus" or the "Christian Messiah Jesus". This not only sounds odd, but is unnecessary. Referring to Jesus as "Jesus Christ" does not make one a Christian, nor does referring to Muhammad as "Prophet Muhammad" make you a Muslim.
2. "We should not capitalize 'Prophet' because that is legitimizing his claims of being one."
In the interest of fairness, we would also have to uncapitalize "Jesus Christ" to "Jesus christ", something that would also be odd.
Shaykh, Imam, Saint or Doctor
Due to similar reasons, at least the first mention in an article should include the individual's religious title. For example, "Imam Bukhari" or "Shaykh Qaradawi". This is no different than referring to a saint or doctor as "Saint Patrick" or "Dr. Phil".
SAW, SWT, He, Him or Her
Additional honorifics such as "Muhammad (saw)" or "Allah (swt)" are not allowed in articles. The same applies to using an uppercase "H" in words such as "he", "him" or "her" in reference to a deity or Jesus. An exception to this rule would be the talk pages where users are free to use whatever form they feel comfortable with. Free use of honorifics are also allowed in pro-Islamic content.