I'm personally a bit picky, and hate it a bit too much whenever a report gets marked as "bad". Even more when it's an avoidable mistake such as reporting a post twice when reporting a few tens or hundreds.
So here I'm thinking, is there something, a resource or so that we coud have in order to prevent this? Well, that's the porpuse of this thread. I'd like to request that from a certain number of reported posts, or good reports as we already have the report history, a small warning is shows saying that you have already reported that post. This warning could also contain some information like the time of the report or even the reported text.
I'm not asking for something too flashy either, a simple red text similar to the "someone has posted while you were typing" text that is usually displayed.
I'm not aware of something similar having been proposed in the last few years, but should that have happened, I'll be locking the thread.
This could also come together with those "reported badges" that have been in the air for some time, although I rather have this functionality than the badge, since it's something practical (although badges are cool).