Dripleaf should make much more sense

Dripleafs are blocks found in lush caves and fall if you stand on it for a second. Entities can also make dripleafs fall, but blocks can't make it fall. If you put even a feather, string or any item, the dripleaf will fall, even though string and feathers are meant to be light. Now for example, placing an anvil on top of a dripleaf, the dripleaf will never fall, even though an anvil is heavy and can damage an entity if the anvil is dropped on it which dripleaf can't fall with even the heaviest block in Minecraft just doesn't make any sense. Maybe change this so that anvils and other gravity-affected blocks can make dripleaf fall in just 0.5-0.8 seconds if that block is placed on top of the dripleaf.