The nine-member panel took only two hours to return a verdict in favor of OpenAI on Monday, which the judge quickly adopted as her own final decision.
Paddy Rodgers said the Observatory's rich history showed the power of human knowledge and the need to avoid "dependence" on AI.
The messages highlight the illegality of what people are searching for online and direct them towards help.
The regulator said the forum had not done enough to protect UK users – but critics accuse Ofcom of acting too slowly.
A cyber security expert says deleting chat history could lead to a lack of accountability if things go wrong.
The government said its in-house IT system was "more flexible" while meeting "high standards" of security.
As the jury deliberates, this is what we found out during the weeks-long trial with two tech titans at its heart.
Ofcom said the commitments were of particular importance after recent crimes targeting Jewish communities in the UK.
It can take a decade to bring a new orchid to market, so breeders keep their hi-tech processes secret.
Quantexa, a financial data platform, won the £175m contract to spot fraud and tax return errors.