Sometime around 2012 they were bought by someone who wanted to make some ad revenue off the site. In the process of transferring the site to the new owner, something was messed up with the code, and the C code is now double spaced (you'll see that there is a blank line between each line of code). The original HackerTyper was not like this.
If you see HackerTyper used in the wild, in short films and YouTube videos and the like, which it often is, you'll notice that around 2012 it started appearing as double spaced, which makes me sad every time I see it. The original site had no ads, and looked a lot more convincing.
