Quoted from frolic:I was pondering when the show went bad. I'd say it was good through to when Alexandria was discovered. Went south with Rick's hair brained scheme to march the pit of walkers down the road. From then on, character after character made stupid choices, or they did dumb stuff like fake Glenn death.
The big pit of walkers could have been dealt with easily - just set up snipers to take out the ones most likely to break out, even if its hundreds I'm sure they had enough ammo, and reinforce that pit to keep doing what it was doing, which was keeping Alexandria safe.
I think you nailed it. Jumped that shark right then and there. Stopped being an interesting thought experiment on actually surviving and became a vehicle for senselenss plot twists, etc.