How safe is Postcrossing?

Postcrossing is generally considered to be a safe and enjoyable hobby for people who enjoy sending and receiving postcards from all over the world. It has been operating since 2005 and has a large community of users who share a love of postcards and sending mail.
That being said, as with any online community or hobby, it is important to take precautions to protect your privacy and personal information. When signing up for Postcrossing, you should only provide the minimum amount of personal information necessary to participate in the program. It’s also a good idea to only exchange addresses with other users who have a positive reputation on the site and to use discretion when sharing personal information in your messages.
Overall, if you use common sense and take appropriate precautions, Postcrossing can be a safe and fun way to connect with people from around the world and share your love of postcards.