We have a long term todo here for normalizing “flags” / “akismet” and “queued posts” into 1 review section. At that point I think we can investigate giving you more fidelity here.
At the moment it is not easy at all to see a quick report of what actions staff took against the akismet queue. I think at a minimum we should log a staff action when marking something as spam / not spam. @eviltrout I know this was a long time ago but do you recall if any auditing was built into akismet short of custom fields?