Basically trying to seem "cool" and "experienced" while flirting with girls. In the age of social media it's common for non-incel men to be in commutation with a lot of different girls in different apps, and what else is there for strangers to talk about. You aren't going to be discussing investment or politics with a random college age cute girl you DM'd. His blind fans are just going to shield him on that.
The real deal is if his practices are part of a bigger network of males (ala Seungri) who talk about girls like they are things he could trade (i think someone mention that), and the go-betweens facilitating Yifan to get in contact with those young women and underage girls
That being said, by typical 'guy' stuff I mean the typical guy who is usually in contact with girls and they are receptive of him (at least at first). Obviously the majority of men don't do this