They are indeed the same. How did it pass?

    $ foo()
    > {
    >     wget -qO- "${1?}" |
    >     sed -n '/.*title"/!d; s///; s/">.*//; s/.*"//p; q'
    > }
    $ cat <(foo 'http://news.ycombinator.com/item?id=1141971') \
    >     <(foo 'http://news.ycombinator.com/item?id=1523991') |
    > uniq -c
          2 http://www.4p8.com/eric.brasseur/gamma.html
    $