*sigh* For example, at work I email a girl back and forth sometimes. Talking about nothing. Stupid shit. At the end of the day the inbox is something like:
sue
HR
sue
sue
sue
VP
sue
wash dept
bob
sue
fred
sue
sue
sue
If someone walks past my computer and see that, they are going to be curious. So I'll just delete Sue's name. Problem solved. Misunderstanding averted.
Or say you suscribe to a forum that automatically forwards responses to your phone. Lots of responses come in one day, so now your phone is bombarded with XForum messages. You can't even scroll to the messages you need. So... you simply delete the XForum messages.
Some people are just anal, and do shit like that for organizational purposes. I mean it never looks right to have one persons name repeated in your inbox or phone. Sometimes I go into my Blackberry and delete chatty (hi h r u) (kbythx) (meet @ 7) messages from certain people, and I save messages from others.
All sorts of things people do... everything is not always as it seems. Open your mind to other plausible explanations. Don't always jump to the obvious conclusion.