A thought-terminating cliché? Not at all, certainly not when it comes to claims of technological or scientific breakthroughs. After all, that's partly why we have peer review and an emphasis on reproducibility. Until such a claim has been scrutinised by experts or reproduced by the community at large, it remains an unverified claim.
>> Unlike seemingly most here on HN, I judge people's trustworthiness individually and not solely by the organization they belong to.
That has nothing to do with anything I said. A claim can be false without it being fraudulent, in fact most false claims are probably not fraudulent; though, still, false.
Claims are also very often contested. See e.g. the various claims of Quantum Superiority and the debate they have generated.
Science is a debate. If we believe everything anyone says automatically, then there is no debate.