Sometimes, OPs might spam commands like //set 0. Unless the action is actually harming the server (such as continuously reloading a certain plugin continuously in an attempt to crash the server), OPs shouldn't be punished for spamming commands. The scenario about crashing the server already falls under section 1.
I just think it's unfair for an OP to be smote for such a simple thing as spamming a command. No warning should even be given.
I would like to know people's thoughts on this.