If the criticism is valid, then the developers must show they care about the game and the community and do something about it. If they don't address their critics, then they deserve to fail. Whiners are unfortunately an occupational hazard. However, it's always on the part of the developer to make a good game in the first place and, if there are bugs or whatever, do their customers a service and fix it at the earliest opportunity. Whiners won't go away but they won't have as much fuel to work with.