It doesn't get many comments, and I always found it tricky to keep up with conversations there, as I didn't get emails telling me when people had commented, and that was a big part of the reason I moved over to having the links splat into my journal instead.
So it always surprises me when people leave comments there rather than in my journal - and especially when something catches people's attention there, but not in the link post.
The latest one being the one where Positive Thinking can make people worse if the positive thought is so far from a negative person's actual viewpoint that they don't just reject it, but they defensively back away from it. Only a little conversation in the comments, but it delights me that it happens - and frustrates me because I know that most of the people reading my main journal won't see it.