Currently, there is no way to reply or comment to a note, other than to make a new note. When replying to a private note, the user has to remember to check the "Private" box, otherwise Reporters will be able to read the reply.

I suggest having a system whereby there would be a Reply or Comment on a note, thereby keeping its current status as Public or Private without having to remember to set the flag on reply.

Replies could possibly be shown underneath (and indented?) the original notes for the bug record. I would suggest having a limit of only one reply level.

It would be a familiar type of system similar to the ones employed on Facebook and other social networking outlets.