Oh good point.. I will have to check that. You are likely right.

"The other day, I wanted to send a screenshot of an application I was working on to everyone in the MU chat"

The Spark client that the same company offers has the ability to send screen-shots, actually you grab any part of the screen you want and send it. That is the one feature that is used a lot where I work.

No - but they know that person X purchased stuff at specific stores - which is the problem - knowing you shopped somewhere does not mean you purchased something nefarious.