The reason I ask is because I often try to be polite and nice. I always ask how they are doing and go on to the topic of the email. I end it with a thank you or have a great day - sometimes I even include a :). What about you?
I find it that sometimes I get some very short or unfriendly messages. I know people are busy and sometimes it's just quick and easy to get to the point. But often, even a little :) can make a message seem friendlier. Don't you think?