HN does this automatically, unfortunately. It's fairly aggressive about editing titles (it'll drop "How" from the beginning too, I think), and sometimes it ends

HN does this automatically, unfortunately. It's fairly aggressive about editing titles (it'll drop "How" from the beginning too, I think), and sometimes it ends up with something confusing. The good news is, if you notice after posting you can go back and edit it and it'll be left alone.