As a complement to ryumanou's comment, I would like to point out a couple of things.
First, there are many reasons why a blog, or any other website, may completely disappear from the Net, that have NOTHING to do with the reliability of the software used and/or the professionalism and financial solidity of the hosting provider. Please note that I did NOT say in the post that these were the reasons why that particular blog disappeared (and in case you're wondering, no, it wasn't my friend's fault, or decision ).
Apart from that, most of the potential users of a trick like this would not adopt it for actual data recovery, that is because their blog is "lost" for whatever reason. They will do it because they need that content, that may very well be still online, in formats that are ready to reuse in other ways. See my next post for more.
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