I joined Vingle from a recommendation by a friend, but I feel I have to comment on the design of the site.
When I go to the home page, there's 3 cards at the top that hold no relevance to my interests, and they take up a third of the horizontal space, meaning I have to scroll down before I can see content that is of interest to me. Those 3 cards, unless they are from my interests, are a burden to me, as the user.
Suggestion: Make them relevant to the user's interests, or remove them.
Next up, simple thing, really. See that white box between "My Interests" and the house icon in the second image? I'm told by my Mac using friends that's supposed to be an arrow. I don't own a Mac. Unicode character 0xe29d is considered private use, which means it is guaranteed to not work cross-device.
Suggestion: Test design across multiple OSs and browsers, and use html code for symbols like arrows, rather than proprietary unicode. Don't use private use data on public systems.
The interests/communities are a nice start, but the limited scope is a turn-off. I shouldn't be told what I'm allowed to like.