Maybe its just me who is paranoid because I happen to spend a fair bit of time in the advertising world, but the first thing I did when memory was launched on Claude/Chatgpt - was to switch them off. And it helps that they are not even useful, and would actually downgrade your experience by polluting the context of irrelevant details. I go one step ahead - if there is a personal discussion you want to have - maybe use another account like provided by the likes of companies like openrouter etc.
I would argue that we should have regulation that should prohibit the storage of user profile information by AI companies, and any such memories feature should exclusively reside on the users servers. Infact, maybe go one step ahead, that 'memory' firms cannot be owned by AI firms and vice versa.