There's no need to worry; your contact details and other private information will not be shared with other members unless you request that we do so.
The app and website let you connect and communicate safely and securely with other members without having to share details like your phone number. In fact, all your data is encrypted, safe, and secure, from your private conversations to your payment details.
Once you feel comfortable with your communication with another member, you are more than welcome to share your own personal contact details through the online Inbox to arrange video/phone calls together.