Lots of people hated it a lot earlier than that. I think I checked out around season four, watched a few more seasons but the quality was quickly becoming an issue.The main problem is that the two head writers just aren’t talented enough to work without Martin’s intense framework, and I think they fundamentally misunderstood why the show and books were popular. Something that was unique in wide appeal fiction quickly became very ‘Hollywood’. Everything got sloppy, sets, costumes, dialogue, pacing, too much meddling.