Who are you talking to?
If you are "serious" about someone, why even open the other letters? I just delete them.
What the site needs is a filter, so that a person can declare himself as "involved," or "spoken for," and not have to listen to the annoying "ploloink" of chat requests from 19 year olds, or see their letters. You know, the ones who say "I enjoyed your profile" when, in fact, your profile distinctly says "I am not interested in girls your age."