A good example is http://codelaborate.org/ . They went to the same uni(Oxford), same course, both doing programming on the side & yet didn't know each other till this summer in London.
All our efforts before were fragmented, resulting in for example, three hackathons in the same weekend.
Sure great things are happening in individual places but imagine the exponential growth when it's less silo'ed & everyone is working together towards a bigger goal.
it's for both hacker news & designer news. It also has support for viewing comments in addition to the clean design :)
*disclaimer, I built it lol
I'm the little guy in the story. 300 followers on twitter, only just starting to develop a name for myself.
I launched theNews ios (http://bit.ly/thenews-ios) recently which basically lets you read Hacker News & designer news in one app.
You'd think that would go down well in HN but nope, it faded into the bowels of HN & im not surprised. There is so much content due to how "open" it is.
Meanwhile people auctually took notice of my app on PH & DN because u dont't entirely need points to be relevant due to the moderate number of submissions. Frankly a better system for the little guy.
Show HN has its place for hacks & product launches while PH is like a brilliant way to launch your product & get feedback from amazing people that you look up to
& i don't think PH is tryna be like Show HN, it's doing its own thing. giving its own spin on Show HN.
All communities can't be open & frnakly the number of products on PH is already overwhelming at its current amount & with more its only gonna get more where it just becomes impossible to keep up. Thats probably the biggest challenge PH faces.
it's a nice alternative to Show HN & will shine in a different way.