IMO its star poster not start pm'er if a person has a question the they post then someone answers not someone post then you pm them the reply. If you fill up your inbox that fast (Within a week) then bob should for that one person. There is a fine line between someones inbox being filled up really fast and laziness to clear it out. That's just what it is laziness. When my inbox is about 80% I clear them its not that hard.