[TeMPOraL]

> Other than a click through and sale, it's hard for any advertising to prove effectiveness.

Advertising industry has a vested interest in keeping things this way, and only maintain perception of effectiveness to milk customers.

[asdff]

Then what happens when competing ad agency calls up your client and explains how bullshit your metrics are? Advertisers compete more than they collude, we don't have a cartel (yet).

[TeMPOraL]

How would they know what my metrics are? Chances are, their whole business is based on pulling the same bullshit as I am anyway.

Competition in an industry whose core competency is lying to people doesn't breed trust.