Hmm, I would only purchase them as a third (or more) layer of redundancy, or maybe for storing things like ripped media that could just be re-ripped (or re-torrented) should the drives fail. I would not trust them for anything important since you have no idea what kind of environment they were in for all those years.
I have the same problem with CloudFlare’s 1.1.1.1. Are the two services related? I also remember the same issue going on with archive.is