Since Vijay suggested doing a bug audit two weeks ago, the number of open bugs has dropped by about 300, or 10%: http://bugs.winehq.org/reports.cgi?product=-All-&datasets=NEW%3A&dat... That was quite a burst of activity!
There are still 1800 bugs that haven't been touched in over 90 days (137 of them reported by me, alas), so we have a lot of auditing and retesting left to do.
BTW, James Hawkins suggests that we consider bugs abandoned if the reporter doesn't respond within 90 days (we had, I think, been letting them sit longer), which seems reasonable to me.