Hi
In previous versions you could use the forbidden characters ([] |, $ \ <> ") in the display name , but in the latest 3.0 RC2 is not allowed.
In the final version will be possible to use them?
Also I have two more question, what is the reason for those characters to be invalid? and why you store in the database those characters in html? Using addslashes you can store them in plain text
Greetings,
Miguel