Pragmatics, intention, and implication

T h e re has always b een a time to speak a n d a time to be silent,
but when given this 
identical sentence later on, they rejected it, saying it should be 
there h a v e
...
More 
recently, I have discovered a disjunction in acceptability of 
L et no m an rejoice until he 
find 
life.
About half the students in one class no longer would use that subjunctive, 
insisting on 
L et no man rejoice until h e
finds 
life.
Those who, like me, can use both get 
the meaning in the first that he is not likely to find life, whereas the latter indicates 
he has a good chance. Others who only allow the first got no such meaning 
differential, and simply found the second wrong.
18Additionally, those persons who treat each dialogue as a game from which they 
have to emerge as a victor is highly confrontational, and are often perceived as 
having an ego problem, not to mention obnoxious.