Romance scams work on anyone lonely and desperate for that sort of attention. It's fucking hilarious though that it worked on someone in a committed relationship. I agree that the poster is likely a guy. There are women out there who get suckered into taking on a moocher but she would probably come across as much more exasperated and would most definitely bring up something about taking care of the kid, plus the housework, plus bringing home the money. Women will always bring up whatever list of household work they do, in detail, as part of their grievances (I do the dishes, and the laundry, and scrub the toilets, AND...)
Imagine having a successful relationship that gets you a marriage and a child with the plus you don't have to work and play around with household chores but don't really do much...and still getting Discord (fake) daddied.