As a Facebook page admin, you have a number of tools. You can delete posts, threads and users, you can add users, and you can pin threads to the top, just to mention a few examples. One thing you can’t do, is close a thread. As admin for several pages, this is becoming a bit of a headache. On the one hand, many of the users of the pages in question have long histories of solid contributions, and the discussions can get lively. We want that to happen. On the other hand, discussions sometimes get out of hand, in particular when controversial topics are on the agenda.