ned+ietf-822(_at_)mrochek(_dot_)com wrote:
The bottom line is that the success of x- fields in other places has
anywhere
from disasterous at worst to mixed at best. And to a large extent the
lack of
harm in many spaces has come from lack of use. So if you're looking for
support
for keeping the X- distinction from the successful use of X- in other
contexts,
I'm afraid it is not forthcoming.
For the record, I posed the question because there was a great deal of
discussion regarding
X- header fields, but I can recall no recent discussion about other use of x-
for experimental
and private use; as I mentioned, there are many instances of such use in text
messaging
protocols (I was a little surprised to see how many, and my list was not
intended to be
exhaustive -- I simply listed the ones that I had implemented in one form or
another). That
struck me as curious, hence my question about what was so unique to X- header
fields that
caused so much discussion, whereas there was virtually no discussion about
other use of x-
for similar purposes. And if indeed use of x- in other places has been
disastrous, why isn't
there a call for its removal from those places?