The word ‘Islamist’ only has the meaning of political Islam and is incredibly commonly used, even in liberal media. The idea that ‘not a lot of other leftists’ would know it is… kinda baffling, given how much actually obscure terminology we bandy about casually.

BlackLotus’ posts do seem ignorant rather than malicious (giving the benefit of the doubt and presuming that it’s not a case of concern trolling)