For us at Sumatra Pasak Bumi, privacy in the age of the Internet is a major concern, and we greatly welcome the European General Data Protection Regulation (GDPR).
We have always been dedicated to privacy protection. The snooping and spooking of all and everybody is a pest. It’s not just the NSA and every large search engine and browser (we recommend Duckduckgo for searches and as browser), but even minor businesses that do their databases and customer profiling in hope of McDonald's style do-you-want-fries-with-that cross sales.
We prefer communication by email using a gmail account because this is probably still the most private mode of communication (Hillary may disagree), and when we have information to disseminate to the public, we just publish it on our website. We do offer the option to communicate with us by chat apps if a site visitor so wishes, but prefer email.
If privacy is your concern, you are in good hands with us.