Don’t know a thing about the reliable of the source. But here
is a listing of some well known people that have converted.
https://en.wikipedia.org/wiki/List_of_converts_to_Islam
And the reverse list of converts to Christianity.
https://en.wikipedia.org/wiki/List_of_converts_to_Christianity_from_Islam
Interesting lists....many islamic converts to Christianity were tortured and killed as apostates....that kind of information is generally left out. What kind of response would an islamic convert to Christianity expect in Iran, Iraq, Pakistan or Nigeria in todays world?