literally the first time i've heard thisThat episode gets a lot of hate from Trek fans but I loved it and thought it was one of the better eps from Season 1. I would have loved a season 2 built around the parasite infiltration and then have a deeply damaged Federation have to deal with the specter of The Borg in Season 3 as a way to get everyone back on the same side out of fear of what is coming.
the only criticism i've seen is that they didn't follow up on it, but they didnt have the money for the special effects