Congrats on the hard work, and the idea is fine, but the problem is that tech like this is a cheap commodity in a massively oversaturated space, and without a hook that makes the platform exceptional (innovative/clever/beautiful design, unique aggregation features, inherently interesting content, reimagined user/content/moderation dynamics etc etc), this kind of thing is dead in the water because it lacks a network effect. Add in the upfront subscription model and failure to launch is basically assured.

When I visit the root domain I shouldn't be greeted with a marketing splash page, you need interesting content in the user's face right away, entice their curiosity and drive the user to explore the site... even as a fellow developer, my first instinct is to abandon the page as soon as I'm greeted with the cliche startup marketing page. Consider the user experience when I visit reddit.com or news.ycombinator.com or any other link aggregation competitor. What you have now is a tech demo, not a platform. Sorry if that's a little harsh, but I mean well! Good luck!