A postcard exchange club has been initiated, inviting participants to express their interest and share mailing addresses privately. The rules emphasize not posting personal addresses publicly and indicate that the guidelines may be refined over time. Participants are excited about sending and receiving postcards, discussing where to find them, and sharing their experiences. Some members express challenges in obtaining postcards or mailing them due to local postal issues, while others share humorous anecdotes about their mailing habits and the difficulties of sending cards on time. The conversation also touches on the enjoyment of receiving postcards from different locations and the personal touches that can be added, such as drawings or messages. Overall, the thread reflects a sense of community and enthusiasm for the postcard exchange, despite logistical hurdles.