I discovered the hard way that IMDB is now automatically creating accounts for you if you are signed in with amazon and it appears details such as my name and email are being shared without my consent. Several other people are also reporting this.
I had this happen to me yesterday. I immediately deleted the account it created (I already had one under a different email address). I sent very negative feedback to IMDB about it, they emailed me back today with a pretty generic response.
To me, this crosses a major line. I don't feel I can trust any site Amazon owns going forward. Any accounts I have currently with this (including my preexisting IMDB account) I now plan to delete, and avoid like the plague so I avoid having more accounts created without my consent. I think people need to react very negatively to this, as it sets a horrible precedent. Imagine every site that currently pops up with "Sign-in with Google" just taking it upon themselves to proactively create an account for simply visiting the page.
I found this help article that explains they're doing it. This doesn't make it better, it just shows it isn't a mistake. Someone made this decision, it was supported internally, and implemented.
To defend against enshittification. Why would I use a big tech controlled resource when avoidable? If I avoid consuming or building on imdb in this context, I avoid inevitable platform decay. Investing in and leveraging public goods > eventual rug pull. Try to avoid the rug pull, when efficient to do so.