How can we report bugs in the Hacker News site? My particular bug/request: the story submission form will trim page title suffixes for some popular sites, but

How can we report bugs in the Hacker News site? My particular bug/request: the story submission form will trim page title suffixes for some popular sites, but the form's "too long" JavaScript check measures the original title length, not the auto-trimmed title length. So I often submit a story and have to manually trim the title suffix that would have been trimmed anyways for a story from the same site with a shorter title.