I also saw a post saying a Tap2Earn game called xEmpire asked for 0.5 TON as well. I think shady projects are starting to make Telegram mini apps. Why should one send 0.5 TON for nothing? That's truly scammy.
Yes, I think so too, users must understand the risks that will occur, with the xEmpire project, further research is needed, they also ask for 0.5 TON before taking the rewards in the project, but that is a provision made by them depending on how we assess the project in the future.