Short answers, pulled from the story.
Don't Trust Me by 3OH!3 became the anthem for crunkcore in 2008. This track fused pre-programmed beats with the emotional intensity of emo music to create a blueprint for the genre. The song emerged from the mid-2000s internet scene and blended post-hardcore with Southern hip-hop crunk.
Brokencyde is widely considered the most responsible for the rise of crunkcore. Their music embodied the genre's core characteristics by mixing screaming vocals of screamo with danceable beats of crunk. Kevin Lyman identified 3OH!3 as the real tipping point, but Brokencyde propelled the genre into mainstream consciousness.
3OH!3 did not incorporate the screaming vocals typical of many crunkcore acts. Instead they relied on modulated vocals and blown-out synths to create their signature sound. This divergence created a unique tension within the scene where visual and sonic markers were present without the expected vocal delivery.
Critics attacked crunkcore for cultural appropriation and racial dynamics within the music industry. They argued that the genre represented an appropriation of African-American culture by white artists. The Boston Phoenix described the genre as a remix of lowest-common-denominator screamo with crunk beats and misappropriated gangsterisms.
Crunkcore influenced the emergence of the hyperpop genre in the 2010s. Aliya Chaudhury of Kerrang! identified crunkcore as one of the three scenes that contributed most to the development of hyperpop. 3OH!3 specifically created the main blueprint for hyperpop through their use of blown-out synths and modulated vocals.