Well each post or reply shouldnt have to be earth shaking. Some will sit and ask themselves "is what i have to say or question worth posting or replying"? and then do nothing because they think what they have to say isnt good enough. When someone stops by the forum and there is nothing new to read for 1 to 10 minutes they usually leave the site. One persons view of quality may not be yours. What some people find interesting you may find boring. So members should contribute whatever they have to offer and it will judged at that point by the response. In my opinion some activity is better than no activity at all when it comes to a forum.