I didn't read the same thing as you.

     I read more trust is needed in pid1 than in any other program. I 
also read one cannot trust a program just because it's decades-old and 
widely used, which is something people sometimes admit only as a 
theoretical possiblity. Dennys pointed a real case.

     Hence the argument already exposed by several persons on this list, 
in particular Laurent: let's pid1 do *only* what no other program can do.

                 Didier