Big brother's at it again! We recently used LogBlock to log players' block placement in the server and though it proved useful, since most player made structures are protected, griefers managed to find underground chests placed by players who'd drop off a few things while mining and stole items from within it. Unfortunately, this has happened twice. Unable to properly accuse these griefers due to lack of evidence, we had to wait until some griefing happened before we went and banned them. Second time around, we were able to invisibly stalk the offender and catch them stealing from chests red handed.
Logblock proved to be inefficient to track chest access so we removed logblock and replaced the plugin with Prism. We are now able to track chest access, entity kills, as well as the good ol' block placement. Griefers, beware!