The it’s not a bad game syndrome
There’s a LOT of gripe on ALL forums that i’ve visited. Most agree that is the game isn’t bad but there is always dissapointment following after that statement. Now that people have been playing D3 for a good while and are hitting inferno they have become increasingly frustrated with the game. Getting one shotted isn’t a whole lot of fun, I hated it in D2 as well. It is annoying and that feeling creeps into the general feel for the game. And that feeling ruins it in the end.
The problem with inferno is that it tacked on. They had a purpose for it, single difficulty throughout all the acts. Because of the design change to Inferno late into the development cycle they probably didn’t have too much time balancing it either. Hence the problem with the steep incline in difficulty in Act 2. It is symptomatic for the D3 development.