This raises serious questions about the supposed "anonymization" of chat data used for training their new models, i.e. when users leave the "improve model for all users" toggle enabled in the settings (which is the default even for paying users). So, indeed, very bad for the current business model which appears to rely on present users (voluntarily) "feeding the machine" to improve it.
[0] https://cdn.arstechnica.net/wp-content/uploads/2025/06/NYT-v...