Cassper spawned an online craze recently when a picture of him standing on his two Bentleys went viral.
The image was soon replicated by hundreds of fans under the hashtag #CassperNyovestChallenge.
But Ntsiki Mazwai is not impressed by Cassper or the trend.
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She took to her blog on Wednesday to call out the rapper, calling his actions "braggy and degrading" to what he represented as a young South African.
She claimed that Cassper's friends had risked injury to take the picture so that the rapper's ego could be stroked, and said that the #CassperNyovestChallenge, which followed showed how strange Cassper's actions were.
Ntsiki warned her followers about falling into the trap of materialism and showing off.
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Ntsiki's post was the latest in her rant about Cassper faking his humility. In a Twitter tirade earlier this month, Ntsiki labelled the rapper an "undercover a**hole" and claimed that the rapper had either changed or had been "faking" humility all along.
In her blog post, Ntsiki suggested that it would have been better if Cassper had given the money he had spent on the Bentleys to empower the less fortunate.
Read Ntsiki's full blog post here.
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