It's a fact of life. Every now and then I receive an ad that informs me of a product or service I really need. Advertising is a fact of commercial life. I am opposed to people abusing their access to me. I think spam should be honest, legal, and that anyone who wants to advertise to me should properly identify themselves.
Privacy is another issue.
On the one hand, it is easy to say that we should all be honest and identify ourselves. On the other hand, there are situations where a person should be able to be annonymous. I may want to participate in a newsgroup discussion, but as soon as I give my real e-mail address, I am a sitting duck for spam. Some people need to be able to be annonymous. Perhaps to discuss political ideas that are not generally accepted where they live and could get them into trouble.