I noticed DTube now has a type of garbage collection going on. About 2 months ago, I replaced the hashes of all my dead videos with garbled text "asdf" so that people wouldn't click on them anymore. I woke up about 3 days ago and those videos were gone from my channel.
Makes the channels look a lot less cluttered ;) Thanks whoever implemented this!!! I've been waiting for a good way to clean up my channel!