It shouldn't be. There is a pendulum swing in moderation around here, and right now we are in an oppressive Kill-Everything-In-Sight-Questionable-Or-Not mode.
There are times when the reins on the forum need to be tightened, and times when they need to be slackened. My observation over the years is that JimRob & the Mods exercise this flexibility quite well, albeit not perfectly.
Before criticizing the mods, please ask yourself this: how would YOU perform if YOU were in charge of the ZAP button?
I don't need an answer to this. But if you are honest with yourself, I suspect that you'd admit to being as "unfair" with that power as I would be. It takes remarkable restraint to resist zapping commentary that one simply disagrees with, although it is a necessary function to delete that which clearly crosses the "line".