I never thought to post this here; it's true. And they will spam you with texts and phone calls trying to sell you that car or some other car.
I asked one nicely to stop spamming me and they responded with something obnoxious as if they were genuinely trying to help me. I reminded him his actions were against ebay policy and I would report them. I doubt it mattered.
I stopped bidding on cars now, screw ebay.
Edit: worth noting, you don't need to win the car. Simply the act of bidding discloses your phone number.
I asked one nicely to stop spamming me and they responded with something obnoxious as if they were genuinely trying to help me. I reminded him his actions were against ebay policy and I would report them. I doubt it mattered.
I stopped bidding on cars now, screw ebay.
Edit: worth noting, you don't need to win the car. Simply the act of bidding discloses your phone number.