Why do people call a season bad before it's over?

[heavens-champion 1,905]

Because they can... If the first half was 'bad' than a lot of people assume the second half will be equally  if not more 'bad'

It's not because they can, it's because they want to. And they like jumping to conclusions.

[bamboozled321 57]

Because what they usually mean is "So far the season is bad, and I'm predicting this pattern will continue".

I don't think a whole lot of people honestly believe they know is an entire season is bad before it's done airing, that's a pretty big stretch. That being said though, it's perfectly valid and fine to say that one horrible episode ruined the entire season for you. That's the beauty of the subjective nature of media. You might think that's unreasonable, and to you it probably is, but to them it's not. If I come across somebody with that position, I find it interesting because then I really wanna know why they feel that way.

Edited June 15, 2016 by bamboozled321

[cider float 2,538]

Based on the track record there is telltale signs of the patterns the writers go through that can tell you if the rest of the season will be very meh or just annoying.