Pulling exact quotes out, SHOULD means "there may exist valid reasons in particular circumstances to ignore a particular item" while MAY means "an item is truly optional."
I don't think this can be interpreted as simply "should is optional".
Well… yes… no… SHOULD means that you must either do the thing or understand the consequences of not doing it. That's not simply optional, the two options are to ① spend time on writing code and ② spend time on learning the consequences. Either way you need to think hard and spend time. And that's why the definition of SHOULD includes the word "must".
Dylan16807|16 days ago
Arnt|16 days ago