I personally dislike the opinion of people that out-right speak this, without any 'backup' whatsoever to prove their point. Especially if they don't bother attempting to do anything for the game themselves.
Kinda makes me all the more peeved when someone's breaking the rules and they're just standing there, shaking their heads and tutting away, "Oh, the mods don't do their jobs. Look at this hideous, rule-breaking display. I'll stand here and complain, not about the user, but rather the staff members."
Any other time, though, I can sometimes understand why people might be upset with the staff members. Otherwise, if you don't make any attempt of withholding some sort of unwritten responsibility as a member and player of the game, don't say crap about the mods, who are doing a hell of a lot more than a lot of people. Cause' you're pretty 'lazy and uncaring' yourself.