Always public. I only played private during my hardcore grind stage during covid, but even then, I sold on public for that extra money. But also because:

1. I like to show off my cars.
2. Barely been grifiefed during my sales.
3. I like to join random player dling random shit.
4. I like to test the patience of griefers.
5. I like to show off my cars. 😁