Does this mean if you happen to be talking to BillG you could talk about brain damaged programs and he'd nod appreciatively?
See also http://catb.org/jargon/html/B/brain-damaged.html
Bill Cosby's "Brain Damage" bit, from the album "Himself": 1982
DOS 4.0: 1988
Those comments also could have also sat in the tree for a few years.
EDIT: Upon doing a web search, actually it looks like it was "brain dead".
See also http://catb.org/jargon/html/B/brain-damaged.html