Excellent observation if I must say so myself. One of Jaikus biggest selling points is that it offers the ability to take your online presence and display it on one page, AKA, LifeStreaming. Users can import feeds from various sites that they are associated with onto their Jaiku page. When one of those sites are updated, the update is published not only on the users Jaiku page, but it can also be viewed on the Jaiku homepage.
Feed updates that are displayed on the Jaiku explore page as a direct result of your online activities are viewed as an acceptable use of Jaiku. In fact, this is generally how the service is supposed to be used. However, what is beginning to happen is that the Jaiku explore page is starting to become bombarded with a ton of feed posts which have nothing to do with the actual user. These types of posts are taking over the front page, leaving very little room for displaying actual messages through the Jaiku service.
There are two things I foresee Jaiku doing to alleviate this problem. (A) Jaiku could only show member Jaikus on the Explore page. (B) Jaiku could simply add a tab to the Explore page which will only show users Jaikus without showing any other information.
Seems simple enough to me and I have to agree, that Jaiku is starting to look more like a feed aggregator than a Lifestream service. Let me know how you would solve this problem.