If I want to buy/sell parts on FB Marketplace, how important is feedback, profile, and friends?

I set up a facebook account for the purpose of marketplace.
No pictures, only info is location and date of birth, and single.
Finally got 1 friend:lol:
I have had no trouble buying or selling.
I have rated other buyers and sellers, but no ones rated me, so no feedback.
The dogs account may raise red flags for me.