![This article is actually fastidious: How spammers generate random comments for blogs](https://blogs.sas.com/content/iml/files/2014/05/t_spamcomments.png)
Last week Chris Hemedinger posted an article about spam that is sent to SAS blogs and discussed how anti-spam software helps to block spam. No algorithm can be 100% accurate at distinguishing spam from valid comments because of the inherent trade-off between specificity and sensitivity in any statistical test. Therefore,