Of course. The shouting and accusations at the official NWN community at Bioware are rampant. Little problems are common: chain shirts are medium armor, for instance. I prefer, however, to think of the glass as half-full rather than half-empty, and enjoy what the game CAN do. Of course the lag problems, DM faction bug, and crash issues are tougher, but Bioware has a history of supporting its games and I expect patches will deal with the worst offenders.
Except for those who have hardware incompatability problems that cripple the game, I think that most of the criticisms are minor. Consider all that the game offers, work with the community to find scripting solutions to problems that can be fixed, and enjoy the game! There's a lot here, both for the player and the DM/world-builder.