I think the idea is great - I actually had the same idea last summer and built www.curate.im which ended up getting absolutely nowhere (log in with username 'test' and pw 'test' if you wanna see inside).
In terms of your actual site, the focus seems to be less on the content itself and more on sharing/commenting on things, almost trying to force people to interact with the site. Not a huge fan of the content on there right now either - a lot of it is quite trivial Buzzfeed-esque. This isn't inherently 'bad', but it's just that there are plenty of sites where you can find that kind of content.
Thank you very much for your comments :) A lot of people mention Buzzfeed like it's a bad thing, but I think it should be remembered that we're talking about one of the biggest sites in the world. But, as you say, there are plenty of sites where you can find that kind of content. We might target a niché more specifically from this point on, perhaps doing more gaming-related lists and focusing on that target audience.
In terms of your actual site, the focus seems to be less on the content itself and more on sharing/commenting on things, almost trying to force people to interact with the site. Not a huge fan of the content on there right now either - a lot of it is quite trivial Buzzfeed-esque. This isn't inherently 'bad', but it's just that there are plenty of sites where you can find that kind of content.