What Use Is An F-call?

What use is an F-call? Participation is a Promise made. Now what do I mean by that? A little while ago I was listening to a conversation on HF, I cannot recall the exact band, but the conversation took in amateurs across much of the country. It had been going for about 20 minutes and a new participant, an f-call, asked for a transmission report from the assembled group. The f-call, likely a new participant apologised for butting in and also commented that he was broadcasting outside his band - which at the time I checked and as far as I could tell, he wasn't. The group ignored the out-of-band comment and several dutifully and helpfully responded with their various signal reports but after about 5 minutes, the tone of the conversation changed and statements about power levels and abuse were being made. This turned into accusations about using excess power, about using 100 Watts to get across the country, about how an f-call was abusing the airwaves, mind you most of it was innuendo, nudge, nudge, wink, wink