I support the auto-closing of old tickets to avoid bug bankruptcy.�� Sometimes things seem more important at the time and when my own tickets come back around I get to be more analytical about the effort/reward balance.
It would be useful to expand this a bit to have a quarterly mail out saying something like "Is this issue still important to you?�� Try socializing it on the pharo-dev mail list.�� Issues going twelve months without interaction will be auto-closed".�� Then its not a bad surprise to new users when their ticket is auto-closed.
cheers -ben