doesnt really spoil anything actually. if you merely read the words all it tells you is that stannis does something big in this episode, you have to look more closely to get any actual spoiler, but if you havent seen the episode already you should just scroll right after reading the posts - before looking at the picture and seeing snow, and wilding tents.
I actually thought the last season was great! maybe not compared to seasons 1-5, but seasons 6-8 started to drop off, they werent too good but then season 9 picked up again. though i still dont agree with that ending.