Right now there is a post about DTube on the frontpage of Hacker News, it's the top post at the moment. If you've never heard about Hacker News, it's basically Reddit for programmers and other people in the tech industry. It's very popular, the whole tech scene uses the site, so when a site gets on Hacker News' frontpage it often gets so many visits that the server crashes.
The Hacker News community is highly critical and has been very negative about crypto currencies in the past, so this is going to be an interesting comment section to follow over the next few hours.
There seems to be a lot of misconceptions about Steem and Dtube already but also some valid critique. And I'd say the misconceptions are a good critique in and of themselves, it means DTube and Steem need to do a better job of explaining what they are and how they work. If even tech experts don't understand it in a reasonable amount of time, there is a problem.
One critique mentioned in the Hacker News thread is that a lot of the videos on DTube are... Lets say unsavory, people who were pushed off other platforms like YouTube through demonetization and now use DTube instead. I don't see that as a negative. Of course those people are the first to adopt alternative platforms and if what they are saying isn't popular, it will sooner or later be driven out by more popular content.
Another critique is that DTube isn't really decentralized and I'd say that is the most valid critique so far. But it's complex. I could write a whole book trying to explain decentralization. There are different degrees of decentralization and different problems, some still have to be solved like incentive for hosting content (Steem does a really good job there, IPFS which DTube uses doesn't yet). And there are so many different types of decentralization now that the word really doesn't have as much meaning anymore as it used to, it's turning into a kind of buzzword. I think I'll actually make a video about that, show the different modern decentralization technologies, the problems they face, how they try to solve them and how that has worked out so far.