You need to think more evil!

Lets brainstorm!

Theres a parking lot... what are the 10 wealthiest car owners...and the 10 frailest oldest people... or maybe the 20 women aged 19-25 blond under 150 pounds... and when do they get off work tired, drive home each day? What's the most isolated gas station,convenience store they stop at? Ones where few other cars pass by? Who's homes don't show a 2nd car in driveway? Owned by 6'5" 200 pound man? Who frequently visits a karate studio?

Or: im a car salesman, in comes a customer, whining abt lowering the price bc Theyre broke... lemme just look up where they eat supper every night! How much time they spend at airports! What school they drop off their kids! Who comes to their house? Nannies? Oh look drug dealers, i can threaten them with blackmail!

Sound ridiculous? All the data brings it into focus. A local detective told me theyre focusing on robberies of $ethnicity restaurants bc that group stockpiles cash in their homes...

And this is all assuming good info, but when u get creative:

..what if we look for mistakes... hey that annoying $religious neighbor pissed me off with his loud music. His kids car shows up as visiting thr wrong side of town..probably a wrong digit but lets report him anyway!!!

Or: Hey lets scan all the wifi dbs for ssids that seem like defaults, then offer them csam-insurance: you pay me $1000 cash rn and ill insure i dont browse csam from your network! And my alpr data says when youre home and your iot devs tell me when you go to sleep so we'll slip it in at before-bed-wank-time!

Oh no, I can think very evil. I just don't see what kind of evil thinking would arrive at "Hey lets use this website to collect IP address/license plate pairs at a small scale"

That just doesn't strike me as a very efficient way of doing evil.

You can just go on accurint and find the oldest people living alone in the richest neighbourhoods near you. You can even fairly reliably find out whether or not they have living relatives.

All this deeply sensitive data is already readily available. I don't think IP+license plate data would be particularly interesting unless you're Google and able to gather that at an absolutely massive scale. But even then, you'd be using it for extremely boring kinds of evil.