Let's say some or all of your questions are deleted (by admins, not by yourself), or your account gets deleted (not by yourself). Is there a way to retrieve your questions? From what I've read, this is possible as long as you have kept the link to your questions. But could it be that after (say) a year, they are completely erased and totally un-retrievable? I don't know if that could happen or not, but better be safe than sorry. Other scenarios are possible too, such as StackExchange closing down all operations, or being hacked or victim of a computer glitch, and resulting in content loss.
In my case, my posting frequency has decreased a lot recently, meaning that I post elsewhere most of the time these days (outside stackexchange), or re-post previous questions elsewhere mostly on my own blog). I am more concerned about older questions. I saved all the links, and wondering if I should also save all the full content (past or future) in Latex documents on my private cloud in case I need to access it to produce future articles or a books.
An example of such a question that received a lot of negativity is this one today. Since I don't have the faintest idea why it got so many downvotes and was closed within an hour, there is no way that I could improve it. I am not criticizing those who downvoted it, I manage a community myself and thus I also delete content that I consider to be inappropriate for my audience. If my previous question that required so much time to produce brings no value to the community, I understand it gets closed / removed, and I have no motivation to post such questions in the future (which is great too for MO), as it also brings no value to me, creating a feeling of giving without receiving anything back.
In short, I am just wondering if I should save in the cloud all the material (of value to me) that I will or have ever published on MO, or in other StackExchange channels.