Ask HN: Did you build a succesful slinkset website?

Just curious with slinkset.com being retired in a few weeks [http://help.posterous.com/slinkset-shutting-down], I'm wondering if anyone was able to build a successful community/website on this platform. And by successful I mean (loosely defined) a website with a decent amount of users or traffic interested in the main topic. (Stats would be nice if you have any.)

Also if anyone has some insight, why do you think this service is being retired by Posterous?