> it was breathtaking the amount of information you could get on anyone, over 10+ years ago.

After being burnt by things taken from my social media out of context, used to publicly shame me, I locked down my social media

Am I "sweetly naive" to think that had an effect? I do think it did

Before I stopped using Facebook I noticed, over the last decade, that almost every account I encountered was locked down similarly

My point is I suspect it is getting harder, not easier, for data thieves. The golden age of data theft has passed. Maybe.