Katie Hafner’s article in the New York Times Circuits section today about spam and false positives is right on the mark. Spam filters are still evolving, and spammers are evolving right with them. Although the flood of spam is largely stemmed by a good filtering app, the results for consumers are still spotty: false negatives are irritating, false positives can be very painful (as the article suggests), and the process still consumes a little too much time. While the article nails the consumer problem, it does miss the corresponding business problem around false positives (see below). But things are getting better. While I wrote generally about how email is here to stay a couple weeks ago, there are a couple…