Why are the user reviews so different from the sentiment on this sub?

I'm genuinely curious. The Steam user reviews are horrid - 52%. The Metacritic critic rating is 80, which would be a full letter grade lower than the next in the series.

And yet...the sentiment on this sub is largely positive. Very few complaints. Very few negative threads, like you would typically see in a game's sub that just released to 52% on Steam.

I'm honestly just a little confused. What the heck is going on here?