Why letters of assignment don’t matter anymore

In the old days, PR firms required media to have a Letter-of-Assignment
(LOAs) as a precursor to being accepted on press trips.
Some even went as far as spelling out required circulation, usually over
100,000. Many PR firms representing state and local government are still
insisting on this ridiculous litmus test as to whether a potential
journalist will be worth their time when it comes to sponsoring them on a
press trip.[FREE DOWNLOAD:
How reporters use social media in their jobs]Why then are