I feel forums are a little like classroom environments. Not many like to go first.
Shoulder tapping people to make a contribution may provide them with the confidence to put forward and answer.
Once one or two have made a comment, others can now see where the conversation appears to be heading, and contribute with more confidence (assuming they follow in the same direction).
The more you read about a topic, the more you get drawn into it, ergo the more you are likely to feel connected and driven to comment.
As the conversation gains momentum you may start to get people who are more willing to post less conforming opinions, as their voice becomes one of many, rather than the only one. (Ruth)
