1.  Not necessarily. I may be that someone is shy or doesn't want anyone to conclude that it must have been "them" who posted something.  But I admit that can cause a problem if someone is shy and has a nasty comment.   Perhaps I'm no help on this one, but I think I have some valid points.

 

 

2.  I think posts should be related to our community and events.   

 

3. Wiping the board clean quarterly?--if there's something we can scroll back to and learn from, no.  If it's about an event that's past history, yes.