AOL block of Comcast residential IPs

[jc at trillian.mit.edu (John Chambers)]

David Kramer komments:
| Is that the
| x-no-archive: yes
| x-no-productlinks: yes
| lines in your headers?

I've seen these before and wondered who/what uses them.  I  just  did
another  check  with google, found 184 instances of x-no-productlinks
for example, and didn't see any specs in the list.  Lots of uses, and
a  few  comments  about it (usually having to do with deja.news), but
nothing defining these headers.  Is there anything around that really
says what (if anything) they officially mean?

(I have some code to conditionally send them, but without knowing for
real  what they do, I don't much bother.  Maybe I'll turn one of them
on for this message ...)