In Bloons TD 6 , when an account is flagged for potential cheating or modding, a small leaf icon appears on the settings gear in the main menu. Being flagged leads to several restrictions:

Playing in a public match with a hacker who drops millions of cash can sometimes cause "splash" flagging for other players in the lobby.

The text provided appears to be a fragment from a written in Polish. In the context of BTD6, such a message usually informs a player that their account has been "flagged" for suspicious activity, often as of the specific date and time mentioned (September 19, 2022, at 11:51 AM). Understanding the BTD6 "Leaf" Flag

You can no longer submit scores for competitive modes like Races , Boss Events , or Contested Territory .

Installing third-party mods, even for single-player speed or quality-of-life improvements, can trigger the system.

Having tools like Cheat Engine open while the game is running. How to Proceed What Being BANNED In BTD6 Looks Like!