It seems like those users were at the highest levels of Uber. Travis and Corey were directly communicating, as has come out already. >>>https://www.recode.net/2017/8/15/16151986/travis-kalanick-an...

So, there are a lot of legit questions as to why Lewandowski was using it to communicate? With whom was he speaking? When and why did he decide to use self destroying communication?

I'd imagine the best practice for hiring a employee that could have a potential conflict of interest or be in violation of an employment agreement would be to document the great lengths the new company went to make sure there was no IP violations and keep records of everything. Though, one could argue that Uber saw value in destroying evidence and create doubting, where the truth would most certainly be damning.