Im all in for it too. It would even be better to have it on the actual Report to Moderator pop-up screen as a link to the guide, being therefore more effective than a pinned post, although I figure we wont see this happening.
I like this idea. Hopefully theymos sees this suggestion, and at least gives it some thought.
EDIT
Just found something interesting:
ArchivePost/Topic:
https://bitcointalk.org/index.php?topic=4524527.0A few thoughts to inspire debate and discussion on the end of conventional central banking (it is a surprisingly recent historical phenomenon anyway) and cryptocurrencies taking over sovereign currencies (because many countries had given up their sovereign currency already anyway) here:
https://bitcointalk.org/index.php?topic=4524280So if I want to report this, it's not nr. 33 copypaste, because the source is included....
...
33. When reporting plagiarized content first make sure that they haven't included an original source. If they haven't then provide the original source that the content was plagiarized from in the report field. There are several tools which can identify plagiarized content as well as manual searches via a search engine.
Maybe this fits the nr. 1 'pointless' type of post, but I have to describe why it's pointless. It's pointless, because it's a copypaste of some other member's post, but the source has mentioned, so it's not a copypaste, so I'm stuck.
The reason why I'm asking this that I don't want to ruin my 99% accuracy (have nearly 650 reports and only 10 bad, so if I can reach the 1000 reports with 10 bad, I hope the system will round the 99% up to 100%

)
Reporting it for low quality content is probably the best. They are just linking to one of their threads in order to gain more exposure. It's sort of a duplicate post, but I think just saying something along the lines of "Low quality content" You could go on to explain that they've copied the first paragraph, and just added a link to their thread. However, it's probably not needed.
In fact their recent posts on their post history page is doing the exact same thing for other threads.