Welcome to the Futures 😏
Funding rate - funding rate. Depending on the value, it is paid by Longs or Shorts (one pays the other), and the payment occurs every 8 hours. This moment should always be considered when trading futures, especially with long-term open positions.
No scams, frauds, etc. This is how the system works. On any exchange! (for those interested - YouTube can help)
By the way, some even earn from this.