It is even more granular for some of the cities, I am in Liverpool (also mentioned in the article) and scouser is more of a superset, containing:
* Plazzy – (from plastic, meaning fake.)
* Wools – (from wooly-backs, having accents sounding as if they might live near sheep, traditionally traders would commute to the city from other cities with wool on their backs.)
* Johnheads (the "ketwigs" (those that spend their money on Ketamine rather than haircuts) that congregate near St. John's Market)
Interestingly, the subsets are more likely to cause offence if used since they're terms mainly used to describe others, and less likely to be adopted (though scouser was adopted.)
I live in Liverpool but grew up on the Wirral and frequently am told I'm a big Wool, and I understood it to be nearly anyone in merseyside but not in Liverpool and plazzy to be anyone not in merseyside but affiliates as a scouser.
To me (from Wales, living in Liverpool) a scouser is anyone with a scouse accent, a plazzy is anyone with a scouse accent that lives outside the L postcode but within Merseyside.
* Plazzy – (from plastic, meaning fake.)
* Wools – (from wooly-backs, having accents sounding as if they might live near sheep, traditionally traders would commute to the city from other cities with wool on their backs.)
* Johnheads (the "ketwigs" (those that spend their money on Ketamine rather than haircuts) that congregate near St. John's Market)
Interestingly, the subsets are more likely to cause offence if used since they're terms mainly used to describe others, and less likely to be adopted (though scouser was adopted.)