Heyo!
I don't think I'm alone in that I like watching games without knowing the outcome. The trouble is, since there isn't one Twitch account for all matches, I usually have to come here to find where the match was streamed from. Even though I try not to look, my peripherals will usually catch the score of the match I am trying to watch.
If there was a little checkbox at the top of the page with a cookie that remembers your preference, anybody that didn't want to see match results could check that and they would be hidden.