On 12 Nov 2006 at 12:41, Steve Summit scs@eskimo.com wrote:
If I read, "You should avoid doing X", I would assume the writer meant, "you should generally not do X" or "you should do X only under exceptional circumstances" or "you shouldn't do X unless you know what you're doing". (I'd assume those interpretations anyway, but I'd *especially* assume them in an environment that includes WP:IAR.) If X really was forbidden or prohibited, I would expect the policy to say, "you should not do X", or "you must not do X", or "X is forbidden", or "X is prohibited", or "X is illegal".
The Internet RFCs have a very specifically defined set of terms for use in such contexts; they define what SHOULD means versus MUST, and similarly SHOULD NOT vs. MUST NOT. (The all-caps words are used to emphasize that they have specific meanings when used in RFCs.)