Reply All Ya'll

Mindless reply all emails are the bane of my existence. We can all email so I am not sure why someone feels compelled to reply all, "thanks." Maybe they want us all to know that they are checking emails well into the night and therefore work is just "SOOOO crazy!" Maybe they do not have faith in the email, internet system and want to confirm receipt of my note but it is senseless. I think a good rule of thumb is to re-read all emails before sending and ask oneself, "Self, does this make sense?" How rude.