Anarcho-punk took the more direct opposition to what punk music was supposed to represent, by actively attacking it, culture jamming, and going forward with brutal honesty pertaining to the sociopolitical nature of music, punk, the industry, etc.

Pop punk forming as a genre was much of the opposite. It kind of embraced the commercial, corporate catchy side of punk, and over time, its image of being controversial and subversive was entirely erased, and now the world is just now expunging the poison Vans Warped Tour has injected in the ears of Gen Xers and Millennials. Nothing wrong with the style itself, but the way it inhabits the industry.

@Mirzaba and post-hardcore? :^)

According to the guy who effectively kickstarted the emo scene in DC, (even if he wasn't really the first or not), Ian McKaye, hardcore and emo are the same thing to him. Why? Because emo is about raw deep expression of emotion. This is how a lot of hardcore punks would describe hardcore music. Though over time emo as a thing developed a more different range of sounds. It wasn't until bands like Jawbreaker, American Football, and Sunny Day Real Estate got sorta-popular to where punks went like, "oh i guess its not really the same thing and it is stylistically different enough"