It probably does nothing directly. It will just feed the data-point into an anti-fraud/anti-spam system along with everything else. And the anti-fraud/anti-sp

It probably does nothing directly. It will just feed the data-point into an anti-fraud/anti-spam system along with everything else. And the anti-fraud/anti-spam system is probably a machine learning black box. It will learn if this data-point is actually correlated with naughty behaviour, and what other factors are usually correlated.