As far as my arabic country goes, they are not known. People know about western converts but not of Nation of Islam or any similar groups. I don't really know if they are big in the general muslim world. I'm guessing a lot of people would have issues with them by default, as they do with everyone, while others would appreciate having a western-based muslim community.

I personally don't know much about them or five percenters or any of that stuff, but they're definitely different from the average muslim. I know a lot of rappers and entertainers join these types of groups and a lot of jazz musicians used to too. They seem to keep their religion as a more individual thing from what I see, compared to what we in the middle east are used to. Maybe they are less serious, or perhaps they are more serious about being black/militant than being muslim. I don't know much. I know that the only muslim public figures I ever found likeable seem to be black American muslim musicians.