I'm from Reddit, too. Indirectly, though: I'm an enthusiastic follower of the small but growing /r/ipfs community, and someone (presumably @heimindanger himself) had a bloody lengthy post about DTube - since I know IPFS, it was the opportunity I was looking for!
Soon realized, obviously that DTube is built mostly around Steemit, and while initially I refused to join and use the site, after learning it, it became quite engaging.
I still have a hard time find a constant and consistent place for discussions, but the "new" feed still provides some interesting stuff to read and vote on.