Having rules set out in advance is much better than being told that you cannot speak on a motion, just because someone says so. That’s too personal, understandably upsetting, and Robert’s Rules helps us avoid it.
Individual indifference to an institution may reflect the institution’s own indifference to itself.
I am by no means an expert on email etiquette, but, then again, who is? Besides, as a philosophy professor, center director, and pastor, I get my share of email, so I make up in volume what I lack in wisdom.