Hello, I am planning to open private conversation rights to all members (once they post a certain number of messages on the board) and want to know how your experiences have been with the same. 1.) Do you think it's beneficial to allow Private conversations from the forum growth perspective? 2.) Should you or should you not set an Inbox Limit. In your opinion, is it advantageous to set an Inbox Limit (using an Add-on) or is it okay not to? 3.) Have your users experienced any difficulties/confusions in using the conversation system? If so, what are your most frequency asked questions? 4.) Have you dealt with spam issues with conversation system and what measures have you taken to reduce it?