By subscribing, you ensure that you will receive timely updates from the club about new events on the calendar and changes to the times, dates, or other arrangements for previously-announced events. You will receive an email message asking you to confirm your subscription. Once you have replied to that message, you're subscribed. You will receive an email message asking you to confirm your request. Once you have replied to that message, you're off the list.
People are often concerned about spam when they think about mailing lists.
In the case of a moderated list, such as this one, only approved people can submit articles. This prevents the injection of spam into the list. The other common concern is harvesting of email addresses from lists so that spam can be sent directly. Only the person who controls the email address in question can arrange a subscription. The volume of traffic on the list will be small, both in the number of messages and in the size of individual messages.