As a few people have already pointed out, a lot of our time is spent consuming the content and not necessarily creating it. Reading the comments is probably the

As a few people have already pointed out, a lot of our time is spent consuming the content and not necessarily creating it. Reading the comments is probably the biggest productivity hit for me. The reason for that is that you can quickly get stuck reading long threads of discussions - especially on the more popular articles. While this is great, maybe try making only the top 5 or 10 comments visible by default, and then giving the user a 'See More' button that would show the rest of the comments. You could also only show the first and second level comments in the default mode, which would add to the simplicity and make it less of a productivity hit. It would be interesting to see people's reaction to this feature if you ever decided to implement it.