The costs of spam (editorial, Aug. 6) go far beyond the ''twinge of disappointment'' you feel after realizing you've been had. Spam costs Internet users 10 billion euros a year in increased connection fees, according to a 2001 European Union study. It also costs businesses in lost productivity, and becomes more than a nuisance when important messages get lost amid mountains of junk.
We can counter spam by not responding to its dubious offers. If you respond to spam, you encourage spammers to continue harassing others. Spammers pollute our electronic environment and waste its limited resources; let them face the same ostracism as ''traditional'' polluters.