One of the moderator's guidelines is to consider especially carefully before deleting an old post, in other words, unless there is a very good reason to delete it, leave it alone. You probably will be disappointed with your report accuracy score going down. Plagiarism in the way that is against the rules wasn't really something that happened pre signature advertising, so unless you happen across malware or someone posting about selling crack, it'll likely be marked as a bad report.
Thats interesting to know most of my reports have been marked good from reporting some in the Hal thread so I guess I'm on the right track. I'll avoid reporting unless I think its personally reducing the quality of historical threads or spreading malware/plagiarism. I'm not too bothered about report accuracy and I currently sit at 100% with over 2k reports. As well as if they are still active then reporting them should be beneficial to the community
