Yes, but getting to the credits is an accomplishment; yes you just go back to your world, but you can say you conquered the End. And ok, now I know what you're talking about with the string. Like in SMP servers where you right click then see the regions.
That's a server plugin? It's called WorldGuard I believe.
People are saying blocks such as lapis, iron bars, and paintings are decoration. realistically, almost every block can be a decoration. (with the exception of non-placeable blocks) Therefore, all placeable blocks should not be considered the most useless. perhaps a watch? powered minecart?