In class, we discussed five possible solutions to spam. Are these solutions ethical? What problems might they create?

1. Require an explicit opt-in of subscribers
2. Require labeling of email advertising (all commercial emails must write ADS on the subjectline)
3. Add a cost to every email that is sent for ads. A micropayment systems is proposed
4. Ban unsolicited email by laws (laws to prohibit spam as those laws made to junk faxes)
5. Increase sophistication of SPAM filters and apply the solutions to texts.