Why "relevant ads are good" is bullshit

"...in other words, Celebrity Cruises is presenting Conroy's review of
his 7NC Cruise as an essay and not a commercial. This is extremely bad.
Here is the argument for why it's bad. Whether it honors them well or
not, an essay's fundamental obligations are supposed to be to the reader.
The reader, on however unconscious a level, understands this, and thus
tends to approach an essay with a relatively high level of openness and
credulity. But a commercial is a very different animal. Advertisements
have certain formal, legal obligations to truthfulness, but these are
broad enough to allow for a great deal of rhetorical maneuvering in the
fulfillment of an advertisement's primary obligation, which is to serve
the financial interests of its sponsor. Whatever attempts an advertise-
ment makes to interest and appeal to its readers are not, finally, for the
reader's benefit."

--David Foster Wallace, "A Supposedly Funny Thing I'll Never Do Again", 1995