The number of such events is grossly insignificant; to the point that this rule is quite a useless one, assuming it passes, which it won't.

The amount of work mods do to keep this place clean is not the kind you can, as a member, imagine. Passing this rules serves to restrict a mod's ability to maintain the forum in the absence of another mod. And for what? To prevent potential issues that involve conflict of interest, which is generally never the case, just a useless whistle being blown by the member.

Your suggestion is counter productive, and is meant to solve an issue that does not yet exist.