Folks whine endlessly over how there was a single alien species more powerful than the Borg.
You just can't win. Seriously.
I seem to recall having this exact same discussion with you about a year ago, where you claimed that people hated 8472 because they could defeat the Borg.
I don't think people hated 8472. I think when they were introduced, it was well done. Notwithstanding any future appearances (the San Francisco in the sky bit), their introduction merely showed us that it was possible to stand up to the Borg and win. Previous to that, we'd only seen the Borg in one-ship-at-a-time quantities (Q Who, BOBW, First Contact).