My rationality is thus: High volume means general interest. I do not want to be the filter feeder for general interest. Importantly, I don't care if I miss a

My rationality is thus: High volume means general interest. I do not want to be the filter feeder for general interest. Importantly, I don't care if I miss a few things; I'm eliminating the vast majority of false positives. I run the risk of missing a few false negatives, but I'm already roughly at my limit for dealing with the true positives anyhow, so it doesn't really matter: nothing I miss is going to cause me to lose a hojillion dollars or anything serious.