I tried once...stunk to high heaven,so I couldnt see myself doing that too often. I wonder too..if you do feed the worms,will snail bait and pellet fertilizers then kill them? I do use a mix of "guano" type fertilizers and pellets. The only real smell is in the bag and you're not likely to burn plants as with a strong manure tea. I've burned plants with only a handful of manure tossed under them.
Like Jim,I never rake up anything on the ground under the jungle type plants. Brugmansia breaks down very fast for example,But, Podocarpus is near the other side of the scale- with Magnolia- THAT does get raked and picked up.