I don't really like this. First, having to receive an approval to an OP will cause problems. Let's take the death of Osama bin Laden as an example: the Off-Topic thread about it had some serious discussion in it, but due to the nature of the event there wouldn't have been enough time and/or knowledge about the event to get the OP RedDiamonded. Secondly, we should be able to discuss serious subject in a not-so-serious way. IMO there should be nothing in this world that is too serious or sacred to be ridiculed or discussed in a more relaxed manner.