When posting a note on a public board, the apostrophe character is substituted for a tilde.
Thus: "Mendicant Physician's Services Available" becomes "Mendicant Physician~s Services Available". The only time this seems to occur is when the messages are listed on the "Messages are located below. Select one to read" prompt after clicking on "[Look at the messages]". Screenshots can be provided! The apostrophes appear correct in all other contexts.
Character is Saibhon Dumein, a cleric, but it appears to affect others as well.
Thank you again for the noticeboard system! :)