PM list and Labels

[jasondbaker]

It doesn't look like there is a feature that allows members to create mailing lists within the private message system.

It looks like labels are a way to tag or categorize personal messages.  Once you tag messages you can click on a label name to see the messages that have been tagged with that particular label.  I have a couple hundred messages and never noticed that feature.  I'm not sure if it is all that useful.