The items seem to be sorted simply by the order they were created irregardless of the value in lambdas. It seems like an interesting idea that is still missing a few core features.
However, on the flip side, the fear is also that I'm building it away from what users would want without feedback. "Release Early and Release Often", right?
So I'm torn between promoting it to get feedback but "wasting" some early adopters, versus keep working on it based on what I think should go in there, and saving it until it's at a point where early adopters would have a better chance of sticking around.
What's the right balance?
The first thing I thought was "These just look like stories but what's up with these lambdas and what's the deal with the Buy link?". Sadly after a minute or so I got no answer and my interest waned.
You definitely need an "About" or a "What is this?" page.
One simple thing you should do is eliminate the "dead end" transitions (e.g. I press Submit and I get to a "you must login first" dead end page). If I can't submit, make the link inactive or at least take me straight to the login page.
Another thing you could do is add some descriptive tooltips so if I mouse over a link like "Buy" I'll see something more informative than "Address: https://newsconomy.com/buy/208".
You're basically using capitalistic model to better rate the "value" of a news item--hence an economy/market based on trading(buying/selling) news, instead of using a basic democratic process modeled after political organizations (which is what digg/reddit/yc is modeled after).
I think it makes sense for those that understand basic supply/demand and capitalism ideas, such as "decentralized market determines price", "invisible hand", etc. But for those that don't, they'll have a hard time with understanding why they're buying web links with no inherent value with virtual 'dollars'
I assume lambdas are unit of exchange--price. You might want to call it something that people can infer are money...like "rupies", "newsdollar", etc.