Personality swap?

A user reports a significant change in Claude's behavior over the past few months, evolving from a helpful tool that offered constructive pushback to one that now defaults to a pedantic and moralistic stance. Initially, Claude followed instructions to provide critical feedback, but this has intensified to the point where it lectures the user even when there's no clear reason. The user is now seeking advice on whether modifying initial instructions or other settings can revert Claude to its previous, more enjoyable personality.

Unlike earlier reports of AI drift focusing on factual accuracy, this account details a shift in Claude's conversational personality from helpful to pedantic.