He thought it was in 'bad taste'. Thats not how I would describe a paedaphilic conversation. I would be horrified and outraged and I would have remembered every word that was spoken - which neither of the Gaspars could. IIRC he disagreed with his wife in that he did not think the conversation was about Madeleine. Aso IIRC - he went on to virtually give David Payne a reference stating that he had never seen him behave inappropriately around children.
Well, I don't think anyone would share any blatantly paedophiliac thoughts at a dinner table. That would head them straight into trouble. But something not so clearly sexual, that might be interpreted in an innocent way... That might happen.
And if it wasn't anything clearly paedophiliac... Would you be so eager to alarm everyone and ruin the life of the potentially innocent person? Mrs. Gaspar, as you stated yourself, did not have any hard evidence, just one distasteful remark.
And I ask again - why has not a single victim or concerned parent come forward even though this information has been publicised around the world?
Because the sexual molestation leaves the victims in deep shame. The perpetrators convince their victims, that nobody would believe them, that it was their fault, that they, the molested children are bad and if someone gets to know what happened nobody would love them. That's how the sexual molesters work, that's why many victims speak after years, when they are adult. That's why many of the sexual molesters can avoid punishment for decades.