I bought VineFeed.com and VinePlayer.com awhile ago. The ToS (at least when I read it) said not to use the Vine name in domain names, so I put that on the backburner. I had wanted to make a couple of sites similar to Vine-videos.com though. I could see Vine bullying people in the future who use it in their name, even after being able to know a site is using it from referral / API data - and allow a site to grow large and then hit them with a "give this to us or we'll sue." If anyone wanted to partner and use the domains though I'd be up for it.