Actually, DTube deletes content from there servers after about 6 weeks. It is neither a truly distributed network, nor is it persistent.
Surprise!
I left DTube after I discovered that my content was gone. Apparently if you read the fine print in the FAQ on the Discord channel they explain this. (It isn't on their website... Hmmm?)
Consider BitChute as a better option.
RE: What is STEEM's Brand Story? A Fun Community Experiment: Crim Says Take Action