Hi Deepasree,

You can add these conditions

a) User needs to be addressed as Junior member , Contributing member , Expert member depending up the use of threads or post maintained by them.Eg as in Geek forum

b) Make sure Threads are not repeated,this is to improve the quality of
forum

c) The thread or posting should be validated by moderator before it is viewed by other mebers

These conditions could be applied as test cases only forum is developed to reasonable number of members

Happy Learning,
Sridevichitthu