One of our goals in our travels is to bring as many people as possible to Steem. If we focus our efforts on DTube or DLive, we won't be able to do that because all of those users are already on Steem.
YouTube is the second-largest search engine in the world and it's owned by the #1 search engine in the world. It offers a ton of exposure and growing our channel over there will allow us to build a stage from which we can promote Steem to 1,000s and 1,000s of non-Steemians.
Also growing our YouTube channel will allow us to get several other income streams that aren't yet possible by posting on Steem. (sponsorships, ad revenue, patreon, paid tours, paid reviews).
Do you actually earn more on youtube than dtube? Hmm this is interesting. It will be great if you can disclose some too. I just gave you a topic for your next video! :P And yeah publicity wise, you're on the right path.
We don't earn anything from YouTube yet. But at our current growth rate, I'd be willing to bet that we'll have companies reaching out to us within a couple of months wanting to partner with us. Soon after that point in time, I think our YouTube earnings will surpass those coming from Steem.