The "i before e except after c" rule

Exceptions to the rule 'I before E except after C'


Comment: Instructor in my business writing class (SkillPath) provided this link.

Conclusion: "Instead of trying to defend the 'rule' or 'guideline', "'i' before 'e' except after 'c'", why don't we all just agree that it is dumb and useless, and be content just to laugh at it?"