This site did not show evidence of storing passwords in plaintext.
This site does allow secured connections (https)
This site did show a clear way to unsubscribe from their emails
This site does verify your email address.
Membership Emails
Below is a sample of the emails you can expect to receive when signed up to Arcade Booster.
Hi
Thank you for joining arcadebooster.com. To active your account please click on the following link . http://www.arcadebooster.com/confirm.html?&confirmUser=1&c=9EtgByWpBg
Thanks again
ArcadeBooster
support@arcadebooster.com
http://www.arcadebooster.com