: It's more a translation of the "lo" as in "Lo and behold"
: The author describes it as saying "Hey, listen to this" without
: implying any differences in status between the speaker and the audience.
Haven't you seen the meme "u mad, bro?" The whole point of it, and "cool story bro," is the mockery of the recipient's status, the whole "the strong are gentle" mantra of internet culture since getting mad at strangers over the internet is a joke because of the nature of all the inconsequential anonymity and "Serious Business" attitude.
The narrator is a troll, and not a funny one.