http://dev.bukkit.org/bukkit-plugins/logblock/ Basically explains what it is. I think this should be added to any server where griefing is illegal. It is good for those who have trouble getting proof, or cannot report.
Support. I went on another server that had the same command and it proved quite effective (I got banned from it 2 times for griefing)
I doubt this will be implemented because it once again means that Cyp/Crew have to get online for every single time somebody griefs.
Although I don't really know of any cases in which we would need this on Mineverse, this is a very handy plugin that I think any server needs. Support. Either this or CoreProtect. They both do the same thing according to their descriptions. From my experience with CoreProtect it works very well.