Honestly?

There appears to be a mini-epidemic of media prefacing their message with the word "Honestly..."

A major tech company is advertising their computers with a young women speaking who prefaces her remarks about how wonderful their computer is with "Honestly..."

In the last couple months I have heard members of Congress commenting on the people's business, prefacing their remarks with "Honestly..."

Political pundits regularly preface their remarks with "Honestly..."

As I contemplate why they say "Honestly" as a preface to their remarks the following questions pop into my head:

Do they preface their words with "Honestly" because they often lie but are actually telling the truth this time?  Otherwise why would they feel the need to preface their remarks with "Honestly..."? 

Since they apparently often lie, am I to believe they are actually telling the truth this time?  Or are they just particularly interested in having me believe this lie?

More fundementally, is this epidemic reflective of the fact lots of folks in the public eye believe honesty in the public realm is no longer a matter of character, but rather a matter of convenience?