Sounds like a bug in HN layout. One fix is setting ".default" a `max-width` attribute, and ".comment { overflow-wrap: break-word; }`. User styles managers can

Sounds like a bug in HN layout. One fix is setting ".default" a `max-width` attribute, and ".comment { overflow-wrap: break-word; }`. User styles managers can fix this per user, but I sent HN an email to let them know.