We are not going to go looking through compressed archives and snapshots for your data. We are not going to run routines on immutable logs to filter out all trace of your history. We are not going to check CSV files used for imports. We are not going to track down any third parties who may have shared our data. We are not going to retrain neural networks on a new dataset that excludes your data. We are not going to move heaven and earth for a user who decides it'd be clever to demand all his data be deleted after reading a couple articles on Medium. We don't care how European you are.

What we can do, is set a little deleted flag on your profile to treat you as "deleted".