alt Hacker News> you have seen it all, go outside
Or "you've seen it all. Bored? Click here to let your friends know you're looking for something to do/see who else is bored". Or "Bored? X needs volunteers!" Or some other positive suggestion to try to prevent a "eh guess I'll doomscroll something else" reaction.
That would be such a killer feature. And it could find other friends in the area and that are also free. Not like Meta doesn't have some kind of model for all that data already probably.