Apologies again for this issue which was discovered for yesterday - and shut down within 30mins (within 5 of me learning about it). There are nearly 70,000 notes in the database and people were only able to read them at random, without the full context of knowing who it was to i.e. you couldn't just goto someone's profile and read their entire inbox. I don't quite know how this changed in the transition/upgrade of the site (it's reassuring to note that this is a new thing), but it's now fixed and secure once more.
Please take a sec to test it for yourself and let me know if you have any issues.
To be clear, only you can read your notes. However, should the police ever ask us for the contents of your notes or if we ever have a need to view them due to an important reason such as abuse, all of your notes are stored securely in our database, and we are able to access them.
Feel free to go through and delete any notes you no longer want in the system.