LC's NoSpam Newsreading account wrote:

Yes.
Perhaps we might also add some provisions by which duplication
of (all or a specific list of) reserved keywords is forbidden. For
mandatory keywords this is implicitly already specified by the
prescribed order (a double BITPIX, XTENSION or NAXIS1 or PCOUNT are
already illegal ... a double TFIELDS, TFORMn and alike should be !)

Lucio Chiappetti



Peter Bunclark wrote (20 Aug):
Would it be too complex to make the non-duplication of reserved words
mandatory and of others just strongly recommended?

Looks like this discussion has hit that well-known threshold where
people who need to keep up just can't manage the time to do so;
certainly applies to me!

Pete.