I came across an interesting firefox greasemonkey plugin the other day called mediatriggerwords that allows you to find and replace common trigger words used in media today. This includes things like the range of killers from Freedom fighter, through insurgent to terrorist. This really changes your perspective when you are reading news as you become more aware of the bias of the news media (or country) to a particular event.
The reason I am commenting on this is that it is not much of a stretch to go from media trigger words to marketing. Imagine a situation where your carefully crafted marketing message is re-written on the fly by your browser.
My best advice, is hopefully what most people do on the web anyway, and that is to stay away from too much marketing speak. Always use language that is easy to scan and understand, and isn’t overtly trying to sell to people. That way not only will your website perform better, it is less likely to fall foul of greasemonkey scripts!