With limited understanding of linguistics, it is difficult to pinpoint the source of resemblance between luanlegacy's way of speech and African American English. As Culter dissected Mike's acquisition of "superficial phonological and lexical features of another dialect," perhaps there are features of the AAVE grammatical system: third singular -s absence, habitual be, systematic copula deltion, R-lessness, TH-stopping, etc. (431) Among the phrases listed above, "they got no" and "it aint gonna" are two of the most popular sentence structures of AAVE imitated by outsiders. Besides, luanlegacy's intonation, speed, hand gestures, facial expressions collectively contribute to his portrayl as a 'diva,' a term often associated with opinionated, vivacious, loud African American women. The way he slowed down and lowered his voice to say, "I don't do clingy," followed by the rather smug facial expression is definitely considered African American mannierism. Also, though he talks relatively quickly throughout the video, "nobody asked for your opinion, nobody asked you to be born" is said extremely fast, a speed at which African Americans often talk at. All of these things help luanlegacy to deliver his message, to be persuasive and heard, even to make his videos popular and widespread. Imagine if he spoke in proper English with even intonation, perhaps said the same message in a scholarly way. As persuasive as his argument may be in this video, if at all, the Youtube population would not have acknowledged luanlegacy's talent in public speaking. His African American English benefited him.
On the other hand, luanlegacy's way of speech was advantageous for him only because he was recording a video that he posted on Youtube. If he were to speak in another form of public domain or to address a different audience, such as businessmen and women, his argument would have held less validity as it was largely based on specific words (ie. fuck) charged with meanings that the Youtube audience would immediately accept and understand. As mentioned earlier in this post, the negative image of African American English remains, albeit more appealing to a specific audience. Indeed outsiders can effectively claim desirable qualities that has a high value in contemporary American popular culture, but it does not mean that these desirable qualities become positive when assumed by White men and outsiders.