Yes brother,I also thougt about that,Some peoples upload the same content over and over again and get upvoted from dtube.Also unauthentic content also get upvoted,though it is very hard to determine.I think dtube is in their early stage and as the time goes on i think this problem will be solved.I am giving my full support to dtube.And i think also that all the members should have some patience in that regard.
Actually I'm not satisfied with Dtubers contribution towards making dtube move forward.
When we get rewarded we should be improving our contributions not just creating contents.
In long term we'll be rewarded highly for our contribution and I'll probably only be upvoting comments only going forward