a person who agrees with what you’re saying may respond with pwm which means “points were made”

It means that you have a pwm in the an english exam...

A abbreviation for Playing wit me

PWM : An acronym for "Players With Money". In business (especially sales) you don't want to deal with suspects or prospects. You should seek to only deal with legitimate "players with money"-- decision makers who can afford your product or service. As they will happily pay full price and won't constantly haggle with you seeking discounts or deals.

The opposite of a PWM are tire kickers and pikers.