I'd say he's sitting on some sliver of unsubstantiated gossip, and instead of investigating anything, he just throws this out there as soon as possible. If it comes up, he looks like he gets all the scoops before anyone else, if it doesn't, it won't be too long before another rumour is floating around and the last one is forgotten.What's he even referencing?
Pretty sure he was the one who came out with the Rance and Mrs Higgins rumour, and then backtracked it hard, presumably after some lawyers made contact with him.