It seems like this would be a useful thing to have so that when you're thinking about filing a bug report you would know whether the problem has already been reported.
You can look at the forums and get a sense of whether others have had the same or similar problems, and people often talk about filing a bug report but there is no way to know whether it has happened.
I'm curious about this because I filed a bug report at some point in the past year - received a very nice reply saying that the problem had been confirmed by duplication - but haven't seen any action on solving the problem. As I research this further it seems that this problem has existed since at least 2006.
I agree. Would be nice to publish a list of reported issues and the status of it (reported, confirmed, under treatment, fixed in release x.x). Though I don't know if any commercial software company publishes this sort of thing (look at all those bugs! what a piece of cr*p!). Openness about it would surely grace software companies (and save users a load of frustrations).