Comment by Bender
If you are confident where the loss is then the only thing you could really do within HN is email Daniel (dang) and ask him to replicate the issue and open a ticket with their upstream provider to check routes and for losses. hn@ycombinator.com
Outside of HN I suppose you could check the Nanog mailing lists [1] and chat servers to see if there is any discussion ongoing for those networks.
I decided to wait a bit, and it's fixed now by way of "americanis.net" no longer being on the path.