The access permissions for cloumn " Business initiation" are as following

Description	Member	Guest
Create new thread	No	No
Reply to thread by same user	No	No
Reply thread by others	Yes	No
Enter forum	Yes	Yes
Edit own message	No	-
Edit other’s message	No	-
Attach files	No	-
Create poll	No	No
Vote on poll	Yes	Yes
Delete own message	No	-
>> HTML function	No	No

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PS) This column is permitted for registered, logon user to write reply.