Where I've lived in Northern California the Ewaste locations have all been very clear that their policy is like that of the old roach motel ads - the parts check in, but they don't check out. The one nearest to me now even has a sign up telling you to not pester people dropping stuff off! I get the impression that it goes beyond a data security issue, perhaps they have a financial incentive to take in as much as possible? It reminds me of a California State program called "Cash for Clunkers" where they would pay people to drop off old cars, as the California Air Resources Board wants to get all older cars off the road; Dave Freiburger had a long running series on what he called the "Crusher Camaro", a 1968 Camaro that they rescued from this program and rebuilt.
When I first moved to this area, there was an Ewaste facility that was located in a small building, so they would often have spillover out front of the building that was unsecured. Once they closed for the day, you could have a look and pick up anything you liked. Conveniently, I would pass by this place on my way to and from work, so I often stopped after work to have a look. Almost everything out there had the hard drive removed, which was fine by me - the couple of exceptions to this that I picked up were likely computers that had been dropped off after hours, something that often happened on weekends when they were closed. There was an all in one computer (it was a Dell or HP) that I grabbed that turned out to have an SSD in it!
But they finally moved to a larger facility, and their outdoor storage area is protected by a very tall fence with barbed wire on top of it. Probably just as well for me, I have to fight my compulsive hoarder tendency anyway.
Every once in a great while I will spot something on the Craigslist Free section, but this is pretty rare at this point.
After watching many YouTube videos about older computer hardware, YouTube began recommending videos about trains - are they trying to tell me something?