I am working with almost all IDEA 9 EAP builds and from time to time report a JIRA issue, but always first trying to check if this issue is reported already.
The very bad thing is that in JIRA you have a huge amount of old not resolved issue. Often I found issues reported 3 years ago unresolved without any comment from you.
Do you plan find some time to check all JIRA issues? I am sure that majority of them are invalid/don't exists in nowadays builds.