I light the area around my base with a Chaos Flower pot from Silent Gems. It creates phantom lights in a wide area around it, lighting things up. Now, normally when you break one of these phantom lights it is just gone, it drops nothing. However, when a Meecreep breaks one it actually drops. Not necessarily the most gamebreaking of things, but something about how a Meecreep breaks a block is somehow not triggering the correct drop (or nondrop I guess) in this case.
I light the area around my base with a Chaos Flower pot from Silent Gems. It creates phantom lights in a wide area around it, lighting things up. Now, normally when you break one of these phantom lights it is just gone, it drops nothing. However, when a Meecreep breaks one it actually drops. Not necessarily the most gamebreaking of things, but something about how a Meecreep breaks a block is somehow not triggering the correct drop (or nondrop I guess) in this case.