This is an idea more for a pleasant community. I understand how they could perhaps clutter the area so I have an alternative idea along side it.
Main Idea: You get these stakes that have an “interaction” to allow you to log that you were there and at what time. You don’t type anything, just press interact.
Now people could go crazy spawning them everywhere, so a side idea to that is place 1 at every single landmark in the game. Then people can visit them. Like stamping a National Park Passport, ya know?
Let me know what you think!