I think that poor opsec is usually either a symptom of naivety from older people who don't know any better, think the Clinton E-mail server/password debacle, or younger people who never grew up being taught that "stranger-danger" was a thing on the internet. If you're of a certain age, you almost certainly remember growing up and being taught that you never share your personal information on the internet, lest some scary boogeyman will come and kidnap you, kill your grandma, and steal your dog. To me, seeing the rapid change in how people have just willingly forked over personal information in the past ~15 years has been bewildering. In less than a generation, we went from "Don't tell ANYONE your real name online or you will die in your sleep!" to "LMAO, give us your D.O.B, blood type, and SSN to find out what Harry Potter character you are!". It's sheer lunacy. Social media is definitely the main culprit, but society as a whole seems to have trended in the direction of eschewing privacy away as a trivial subject. With everyone having a cellphone and social media, people are expected to be reachable at all times, and (((The Media

))) definitely helps the narrative by portraying people who object to this shit as outliers, some sort of "-theorist", or crazy, and coming up with snarky names or catchphrases when people don't go along with it.