I just use it to organize my notes/thoughts/links using set theory and other people can view them if they want. If you run Mindapp locally, you get the option to store links in in a local space so they're private and you also get to install the extension which makes adding links super fast. There are other features to be added, but there isn't much incentive to add them at this point. For example, the votes could be used to prioritize the feed, so if a post get downvoted enough times or by specific accounts, it is less likely to show up.