As a member of the Pirates without Borders, you obtain voting rights within the association. For becoming a member you have to accept the statuts (German).
Your only duty is to pay the annual fee of 32 € (16 € for those with limited income).
You have thre ways to become a member:
By regular mail:
Print, fill out and mail the PDF by regular mail to:
Piraten ohne Grenzen
CH-9000 St. Gallen
You can also use the analog method: Download the membership Application as PDF here. Fill it in legibly and send it via snail mail or scan it an send it via e-mail to firstname.lastname@example.org
You simply fill out the webform to become a member.