> but right now there's no credible evidence, only claims.

since it's openAI who has the evidence (in the form of chain of thoughts, their internal processes, etc etc), it's on them to justify why they're innocent. but they've released nothing at all. we don't even know how hard they tried.

you're being naive

OpenAI has said that their models were definitely not trained on any of Buckmaster's sessions after July 3rd (from https://archive.ph/75WcF); likely they found that's when he switched the "allow training" setting off.