all those find people's address with a plate sites are scams. the only reason people blur them out online is because they see other people blur them out...
I see people on Facebook groups trying to sell their shitty $1000 cars and they always always always put their finger or something in front of the license plate. I always comment "pro tip: people can see your license plate when you drive down the road". They always get pissed and say "please don't comment if you aren't interested in buying".