If you are only interested in reading posts on this forum, and not contributing, you do not have to register. However, a benefit of doing so is that new messages since your last visit will be highlighted.
If you want to be able to post messages, you will need to register. After registering please check your profile and it is highly recommended that you change the setting for "Allow others to contact me by email" (under Board Preferences) to "NO". This will ensure your email address is not accessible to any visitors to this site and will prevent it from being obtained by spammers.
This will not prevent private communications being made - please use the "Private Message" system.
All other settings in the profile can be left at default if you wish.