This listing of email addresses is intended to be a communication tool. No addresses or phone numbers will be attached to them unless a person specifically requests to have them posted. Vice-versa , this person may want to post their email address to allow friends back home to communicate with them. A person may have given you their email address, but you lost it. This is a way to quickly look it up.
Some email addresses can be quite lengthy and difficult to remember.
A local event may be coming up in town, like a town meeting or school board meeting. People in this town can be communicated with on such activites as a reminder or first notification. Some people like to occaisionally communicate with people they may have met during the summer, but have a residence elsewhere. Email pen pals, etc. As you can see, the purposes vary and are not exclusive to the list above.