Lately I've been wondering if it was remotely possible that my questions and answers (or any other user's) got lost by any kind of malfunction. Is there some kind of backup that ensures all the great answers and question made by users in math.SE is safe? Is it possible to "back-up" certain questions or answers in some easy and effortless manner? As an example, take Brian or André's, +5000 answers.
Well, there's an StackPrinter. It has a bookmarklet and a greasemonkey script that can be used to easily print a virtual copy of a question. The only problem is that the only output I've seen from this printer is uglier than me, I'm unaware of how to configure it to a nicer output.
There are also virtual printers such as:
- Nitro PDF Creator;
- Universal Document Conversor;
- Cute PDF
As Asaf commented, there are public database dumps, Mad Scientist points it here:
SE provides a database dump of all graduated sites every few months, you can use that to set up a copy of this site if you like. For every site that was shut down (only beta sites have been shut down, no graduated sites), SE provided a final data dump with all the site content.
With some scripting software, I guess you can make an automated database backup. This question adds a few more details. These queries in Stack Exchange Data Explorer can export all your questions/answers in a CSV file.