After the two had first connected on the dating app, the conversation moved to other platforms.
At this stage, the presenter revealed his identity and told the young person not to tell anyone.
Later, the young person alluded online to having contact with a BBC presenter, and implied they would name him at some point.
The presenter reacted by sending a number of threatening messages.
So they meet on a dating app, talk elsewhere at which point the presenter reveals their identity, they never meet but, later, the other person suggests online that they might reveal the presenter's identity, so they get a rude message.
This doesn't seem like a big deal, unless the threatening messages were really threatening.