Almost all the posts means the same while translated through Google and they do seem to be not necessary right at the moment.
You can report the posts:
27. Using automated translation tools to post translated content in Local boards is not allowed.
Just a thought: I could make
a list of active posters in the past 1h/24h/7d, dedicated to only a certain signature campaign. All it takes is a list of participants. I could also make my own version of
patrol for only one campaign (say: yobitpatrol.tk). I think this would be a great tool for finding spammers, but getting an updated list of campaign participants isn't always easy.