Sure, they'll come looking for you. Registration and titling of cars just makes that even worse, not better, for innocent people who lend out cars. If that's your argument, that's one against having registration / serial numbers / record of transferring firearms.
The police can also rake you over the coals for anything. I had a search warrant once served to me because a few corrupt DHS agents (CBP and HSI) fabricated a warrant that suggested I had drugs up my ass (not even embellishing here). Police can come looking for you for any reason they want.
Hopefully innocent people are eventually vindicated (as I was), but it's definitely better to never be identified in the first place if you're an innocent.
Arguing against regular old accountability is not a good look.
Taking a group, the vast majority of which have done nothing wrong, and wholesale holding them 'accountable' by releasing their private information is senseless and indefensible.
There is so much more to this story than you're telling us. My first thought is that there is probably a reason for that. But I'm genuinely interested in hearing more.
if your car is involved in a crime, the cops will come looking for you. maybe you can beat a conviction but you might face an uphill battle even with an attorney. but sure, it's not illegal to sell a car without transferring the title, but neither is it considered a legal sale. that is still your car as long as the title is in your name.