Protip: Takfiri Salafists, I call them that because they engage in excommunicating Muslims, i.e. calling Muslims “kuffar”.
They do this so that they can justify killing them, enslaving them, etc.
Also, they hate the Shi'a and Ahmadi Muslims, and god help you if you're Sufi in any way.
They'll even kill religious scholars who disagree with them.
You'll hear the term “Khawarij” used on them, because, yes, they're first group who did this sort of shit.