I've also been intrigued about the owner of archive.is and have looked in to it a couple of times but what I managed to find is pretty much all the same stuff as mentioned here.
One interesting thing I'd like to mention are these tweets[1] by archive.is when he was supposedly questioned for something at the finnish - russian border and as a result he blocked the entire site in Finland, although later he lifted the block. I also couldn't find any information about the "Russia vs. http://archive.org case" he mentions in the tweet.
Well, formally, there is a prosecutor office or court decision behind every new block of Russian Censorship Agency, which then merely implements it (and demands the services to remove information or get blocked), but even they stopped pretending they are not in control of rubber-stamping the papers.
You can see the fine collection of everything from The Anarchist Cookbook to le ironic nasheed remixes, and from exposures of Astral Jews to Alex Jones there:
One interesting thing I'd like to mention are these tweets[1] by archive.is when he was supposedly questioned for something at the finnish - russian border and as a result he blocked the entire site in Finland, although later he lifted the block. I also couldn't find any information about the "Russia vs. http://archive.org case" he mentions in the tweet.
1: https://archive.is/Pum1p