I didn't mention marketing. Nor did the sentence I quoted. If you mean:

advertising: n. The activity of attracting public attention to a product or business, as by paid announcements in the print, broadcast, or electronic media.

marketing: n. The activities required by a producer to sell his products, including advertising,

then my complaint applies. Pushing information about your product into my face is both advertising and marketing.

If you mean "marketing: n. The act or process of buying and selling in a market." then your comment is unrelated, because neither I nor the person I replied to were talking about other people trading between themselves.