From the description of the site, it's not just like HN but like countless design forums that have existed for years, where people critiqued each others work.

From the description of the site, it's not just like HN but like countless design forums that have existed for years, where people critiqued each others work. That's not what matters though. The quality of the designers, developers, starting a community from scratch with a slightly different demographic could be an incremental improvement over previous attempts.