I was in 5th or 6th grade when the CB Radio (Citizen's Band Radio) craze hit in the late 70's when a similar phenomena occurred. I remember hearing arguments over the airwaves that sometimes included invitations to meet and settle things in person. When possible, the neighborhood kids would ride bikes to the meeting spot, but nobody ever showed up and we never saw any fights.
It's not a new behavior and really not much different from "liquid" courage. Understand the behavior and move on.
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