If there is a reward, it will be based on the report accuracy percentage as well as the number of reported posts, preventing abuse from random accounts reporting thousands of posts in an attempt to outwit the system.
I'm curious: did the user with 70% accuracy report many controversial posts? Say on the Politics board?Could be but.....
I don't see user's accuracy data; the 70% was only an illustration, but I'm sure many users have worse %. On my local board, a user was using the "report to moderator" button to report their posts for merits, which were marked as bad/inaccurate, he might be doing the same thing on the English board; I'm sure his accuracy score is terrible as hell.