i haven't been on NS for very long but i've noticed that almost every thread where somebody is asking for advice or something there is always someone else who feels like bitching at him. if you don't want to help the brotha out just keep your mouth shut. if you have had a serious problem with equipment or something you can say something went wrong but you don't need to start insulting everyone who thinks differently than you do.
in summary... you can voice concerns or problems but stop with the PMS'ing off at everyone!