Comment Features on Vialogues
I noticed a trend where people would have to post +1 to acknowledge an insightful comment. It would be nice to have a point system in Vialogues. Once every comment has a score, further functionality would include sorting them by most points, and most replies.
This would also encourage intellectual competition between commenters. If I was casually visiting a random Vialogues, I would most likely sort them by most points to see the most influential material. Educators can use this feature as a reward system for his students.
Accumulating points in any Vialogue would also increase a user's contributor rating. High points would mean many and meaningful contributions. This would portray a valuable profile for a community and could attract users to visit his activity history.