Maybe because the recommendations are just that, recommendations? The Bukkit Packages are sealed and are not recommended. That's a forced issue. They won't accept plugin's with bukkit in the package names as that is something they need/want enforced. Let's also not mention the fact that it's not the job of Bukkit to teach the plugin developers how to be software engineers. I think the system will be self moderating anyways. I know for a fact it is. And by that, I mean if someone doesn't Generate a BLOCK_PLACE Event when they place a block, and another plugin is affected, the user's are going to notice and complain to the authors. They will either then work out what's wrong, or the users will end up stop using the plugins. DispNameChanger actually had an issue with priorities and another plugin. I was contacted by users and another author in regards to the issues they were experiencing. Me and that author worked out which priority our plugins should be at, and now both of them play nice. Like I said, self moderating. My example is obviously the ideal for fixing the problems and that's not going to happen with everyone.