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 dziendarmowejdostawy.
Welcome Henry and thank you for joining Your Store's Affiliate Program.
Your account must be approved before you can login. Once approved you can log in by using your email address and password by visiting our website or at the following URL: