some people are too haughty and this is known as 'ujb in arabic which is haram. people who talk about some scholar as 'new-comers' talk as if they were or their shuyukh were muhadditheen since birth. kibr is one of the diseases prevalent in people of knowledge. and if you see kibr or boasfulness in a scholar - keep away from him. --- on shaykh mamduh being criticized: there is no law that one cannot criticize a shaykh rightfully just because one benefits from his knowledge. i don't know why this 'hadith of nur' has suddenly become a cornerstone of our `aqidah. moreover, shaykh gibril did not 'cast doubt upon him' as far as i know. i am not saying anything about the hadith itself, but my point is that it is a mere scholarly difference and we shouldn't throw each other out of ahlu's sunnah for differing on this matter. Allah ta'ala knows best.