I really like the concept, but I think it would have to be limited. For example, a few dropped items can create lag, so, even if the items were not actually "placed" under the map, but instead stored on a server database with co-ordinates, it would seem to me to take up too much memory. This burial system would commonly be used as a primitive bank, so, when you think of how many players would be continuously accessing the database (especially when multiple players bury "treasure" in one location, and mistakes are made), I think this idea in the form proposed here would just take up too much of the server's memory and computing power. However, I think this could be useful with events, and the "bury" command should be made a GM power, and the "dig" confined to the zone/s where the "treasure" is, to avoid too many queries or the database storing too many "treasures".
