I've bumped this thread because my accuracy has dropped to 96%. I try to report posts that I feel are of no benefit or destructive to the forum, but it looks as if I may not be on the same page as the mods. I tend to feel that if I can't improve my assessment, that I should give up reporting posts.
You seem to have got the bad report for this post:
https://bitcointalk.org/index.php?topic=3298532.msg34430004#msg34430004 reported as "duplicate thread - could they be merged?"
Maybe you should have reported the first post and not the second, but a report like that I probably would have just ignored and marked neither bad or good. I wouldn't worry too much about the odd report or so though. Some cases will just be down to the individual who handles them.
How difficult would it be to provide access to a list with our failed reports?
Not unless theymos changes it. I think people should be able to see their recent history though and reports marked good or bad. Would help people figure out what should and shouldnb't be reported.