Back in 2013, 11 year-old me would use this app (you kids would never understand) to go into people's worlds and just grief, I think as a form of vengeance after someone did the exact same thing to me. Anyway, I went into a world where some kid was building a mansion, and it was genuinely pretty cool, and I readied to do a bit of trolling, but after taking a moment to talk to the kid and all that, I just... didn't do it? And I hung out with him for a bit, we just had fun building that mansion together and talking in the app's voice chat. Before I left, I admitted to him that I had originally joined to grief him but changed my mind after realising I just wanted to hang, and we just laughed about the situation.
No idea where the kid is now, we never saw each other after that, but kudos kid I met on Multiplayer for Minecraft PE a decade ago, I hope you're living your best life.