Looks like they got erroneously banned by the automated spam filter as of their very first submission, four months ago: https://news.ycombinator.com/submitted?

Looks like they got erroneously banned by the automated spam filter as of their very first submission, four months ago: https://news.ycombinator.com/submitted?id=lguerin https://news.ycombinator.com/submitted?id=lguerin That submission seems like it's from a valid site that has many other submissions, so it may have been something related to the IP address they submitted from (or maybe they used a VPN). As you said, an e-mail to the moderators should get this fixed.