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Abing
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Yeraza_Bats, the person who spoke to me shared that she had been receiving messages sent to her Private Messages and private chat boxes. It was never spoken publicly.
Viv, cases like this, I would (and this is just me) strongly suggest, to get a moderator involved. Well, first of all, have them report it to moderator. If they refused, or are too scared, get a moderator involved (3-way conversation, or BCC or CC a moderator). This is something that is supposed to be reported. Since she was too scared to do it, and has passed the responsibility to you (and you have accepted it), then get a moderator involved. No need to take matters into our own hands when there are authorities.
It is our responsibility to teach these people what to do, when they're clueless.
As for CC being a safe place. This is an internet forum. It can only be safe for us, as we want it to be. CC does make it easy for us to report forum posts, report offenders (that report button - in chat, however, would be helpful if that's also available).
Also, Yerava is right. If this was a kid, it is her parents responsibility to monitor their child. Again, let's not take matters into our hands. I know we're just trying to help, but there is order on how things should be done to be effective.